-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Author: Wang Di <wangdi@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
#include <linux/module.h>
-#include <linux/jbd.h>
#include <obd.h>
#include <obd_class.h>
#include <obd_support.h>
#include <lprocfs_status.h>
/* fid_be_cpu(), fid_cpu_to_be(). */
#include <lustre_fid.h>
+#include <obd_lov.h>
#include <lustre_param.h>
-#include <linux/ldiskfs_fs.h>
#include <lustre_mds.h>
#include <lustre/lustre_idl.h>
#include "mdd_internal.h"
static const struct lu_object_operations mdd_lu_obj_ops;
+extern cfs_mem_cache_t *mdd_object_kmem;
static int mdd_xattr_get(const struct lu_env *env,
struct md_object *obj, struct lu_buf *buf,
const char *name);
+int mdd_data_get(const struct lu_env *env, struct mdd_object *obj,
+ void **data)
+{
+ if (mdd_object_exists(obj) == 0) {
+ CERROR("%s: object "DFID" not found: rc = -2\n",
+ mdd_obj_dev_name(obj), PFID(mdd_object_fid(obj)));
+ return -ENOENT;
+ }
+ mdo_data_get(env, obj, data);
+ return 0;
+}
+
int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
struct lu_attr *la, struct lustre_capa *capa)
{
- LASSERTF(mdd_object_exists(obj), "FID is "DFID"\n",
- PFID(mdd_object_fid(obj)));
+ if (mdd_object_exists(obj) == 0) {
+ CERROR("%s: object "DFID" not found: rc = -2\n",
+ mdd_obj_dev_name(obj), PFID(mdd_object_fid(obj)));
+ return -ENOENT;
+ }
return mdo_attr_get(env, obj, la, capa);
}
void mdd_buf_put(struct lu_buf *buf)
{
- if (buf == NULL || buf->lb_buf == NULL)
- return;
- if (buf->lb_vmalloc)
- OBD_VFREE(buf->lb_buf, buf->lb_len);
- else
- OBD_FREE(buf->lb_buf, buf->lb_len);
- buf->lb_buf = NULL;
+ if (buf == NULL || buf->lb_buf == NULL)
+ return;
+ OBD_FREE_LARGE(buf->lb_buf, buf->lb_len);
+ *buf = LU_BUF_NULL;
}
const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
return buf;
}
-#define BUF_VMALLOC_SIZE (CFS_PAGE_SIZE<<2) /* 16k */
struct lu_buf *mdd_buf_alloc(const struct lu_env *env, ssize_t len)
{
- struct lu_buf *buf = &mdd_env_info(env)->mti_big_buf;
-
- if ((len > buf->lb_len) && (buf->lb_buf != NULL)) {
- if (buf->lb_vmalloc)
- OBD_VFREE(buf->lb_buf, buf->lb_len);
- else
- OBD_FREE(buf->lb_buf, buf->lb_len);
- buf->lb_buf = NULL;
- }
- if (buf->lb_buf == NULL) {
- buf->lb_len = len;
- if (buf->lb_len <= BUF_VMALLOC_SIZE) {
- OBD_ALLOC(buf->lb_buf, buf->lb_len);
- buf->lb_vmalloc = 0;
- }
- if (buf->lb_buf == NULL) {
- OBD_VMALLOC(buf->lb_buf, buf->lb_len);
- buf->lb_vmalloc = 1;
- }
- if (buf->lb_buf == NULL)
- buf->lb_len = 0;
- }
- return buf;
+ struct lu_buf *buf = &mdd_env_info(env)->mti_big_buf;
+
+ if ((len > buf->lb_len) && (buf->lb_buf != NULL)) {
+ OBD_FREE_LARGE(buf->lb_buf, buf->lb_len);
+ *buf = LU_BUF_NULL;
+ }
+ if (memcmp(buf, &LU_BUF_NULL, sizeof(*buf)) == 0) {
+ buf->lb_len = len;
+ OBD_ALLOC_LARGE(buf->lb_buf, buf->lb_len);
+ if (buf->lb_buf == NULL)
+ *buf = LU_BUF_NULL;
+ }
+ return buf;
}
-/* preserve old data */
+/** Increase the size of the \a mti_big_buf.
+ * preserves old data in buffer
+ * old buffer remains unchanged on error
+ * \retval 0 or -ENOMEM
+ */
int mdd_buf_grow(const struct lu_env *env, ssize_t len)
{
struct lu_buf *oldbuf = &mdd_env_info(env)->mti_big_buf;
struct lu_buf buf;
LASSERT(len >= oldbuf->lb_len);
- if (len > BUF_VMALLOC_SIZE) {
- OBD_VMALLOC(buf.lb_buf, len);
- buf.lb_vmalloc = 1;
- } else {
- OBD_ALLOC(buf.lb_buf, len);
- buf.lb_vmalloc = 0;
- }
+ OBD_ALLOC_LARGE(buf.lb_buf, len);
+
if (buf.lb_buf == NULL)
return -ENOMEM;
buf.lb_len = len;
memcpy(buf.lb_buf, oldbuf->lb_buf, oldbuf->lb_len);
- if (oldbuf->lb_vmalloc)
- OBD_VFREE(oldbuf->lb_buf, oldbuf->lb_len);
- else
- OBD_FREE(oldbuf->lb_buf, oldbuf->lb_len);
+ OBD_FREE_LARGE(oldbuf->lb_buf, oldbuf->lb_len);
memcpy(oldbuf, &buf, sizeof(buf));
return 0;
}
-struct llog_cookie *mdd_max_cookie_get(const struct lu_env *env,
- struct mdd_device *mdd)
-{
- struct mdd_thread_info *mti = mdd_env_info(env);
- int max_cookie_size;
-
- max_cookie_size = mdd_lov_cookiesize(env, mdd);
- if (unlikely(mti->mti_max_cookie_size < max_cookie_size)) {
- if (mti->mti_max_cookie)
- OBD_FREE(mti->mti_max_cookie, mti->mti_max_cookie_size);
- mti->mti_max_cookie = NULL;
- mti->mti_max_cookie_size = 0;
- }
- if (unlikely(mti->mti_max_cookie == NULL)) {
- OBD_ALLOC(mti->mti_max_cookie, max_cookie_size);
- if (likely(mti->mti_max_cookie != NULL))
- mti->mti_max_cookie_size = max_cookie_size;
- }
- if (likely(mti->mti_max_cookie != NULL))
- memset(mti->mti_max_cookie, 0, mti->mti_max_cookie_size);
- return mti->mti_max_cookie;
-}
-
-struct lov_mds_md *mdd_max_lmm_get(const struct lu_env *env,
- struct mdd_device *mdd)
-{
- struct mdd_thread_info *mti = mdd_env_info(env);
- int max_lmm_size;
-
- max_lmm_size = mdd_lov_mdsize(env, mdd);
- if (unlikely(mti->mti_max_lmm_size < max_lmm_size)) {
- if (mti->mti_max_lmm)
- OBD_FREE(mti->mti_max_lmm, mti->mti_max_lmm_size);
- mti->mti_max_lmm = NULL;
- mti->mti_max_lmm_size = 0;
- }
- if (unlikely(mti->mti_max_lmm == NULL)) {
- OBD_ALLOC(mti->mti_max_lmm, max_lmm_size);
- if (unlikely(mti->mti_max_lmm != NULL))
- mti->mti_max_lmm_size = max_lmm_size;
- }
- return mti->mti_max_lmm;
-}
-
struct lu_object *mdd_object_alloc(const struct lu_env *env,
const struct lu_object_header *hdr,
struct lu_device *d)
{
struct mdd_object *mdd_obj;
- OBD_ALLOC_PTR(mdd_obj);
+ OBD_SLAB_ALLOC_PTR_GFP(mdd_obj, mdd_object_kmem, CFS_ALLOC_IO);
if (mdd_obj != NULL) {
struct lu_object *o;
}
static int mdd_object_init(const struct lu_env *env, struct lu_object *o,
- const struct lu_object_conf *_)
+ const struct lu_object_conf *unused)
{
struct mdd_device *d = lu2mdd_dev(o->lo_dev);
struct mdd_object *mdd_obj = lu2mdd_obj(o);
struct mdd_object *mdd = lu2mdd_obj(o);
lu_object_fini(o);
- OBD_FREE_PTR(mdd);
+ OBD_SLAB_FREE_PTR(mdd, mdd_object_kmem);
}
static int mdd_object_print(const struct lu_env *env, void *cookie,
lu_printer_t p, const struct lu_object *o)
{
- return (*p)(env, cookie, LUSTRE_MDD_NAME"-object@%p", o);
+ struct mdd_object *mdd = lu2mdd_obj((struct lu_object *)o);
+ return (*p)(env, cookie, LUSTRE_MDD_NAME"-object@%p(open_count=%d, "
+ "valid=%x, cltime="LPU64", flags=%lx)",
+ mdd, mdd->mod_count, mdd->mod_valid,
+ mdd->mod_cltime, mdd->mod_flags);
}
static const struct lu_object_operations mdd_lu_obj_ops = {
if (obj == NULL)
GOTO(out, rc = -EREMOTE);
if (IS_ERR(obj))
- GOTO(out, rc = -PTR_ERR(obj));
+ GOTO(out, rc = PTR_ERR(obj));
/* get child fid from parent and name */
rc = mdd_lookup(env, &obj->mod_obj, lname, f, NULL);
mdd_object_put(env, obj);
/** mdd_path() lookup structure. */
struct path_lookup_info {
__u64 pli_recno; /**< history point */
+ __u64 pli_currec; /**< current record */
struct lu_fid pli_fid;
struct lu_fid pli_fids[MAX_PATH_DEPTH]; /**< path, in fids */
struct mdd_object *pli_mdd_obj;
if (mdd_obj == NULL)
GOTO(out, rc = -EREMOTE);
if (IS_ERR(mdd_obj))
- GOTO(out, rc = -PTR_ERR(mdd_obj));
+ GOTO(out, rc = PTR_ERR(mdd_obj));
rc = lu_object_exists(&mdd_obj->mod_obj.mo_lu);
if (rc <= 0) {
mdd_object_put(env, mdd_obj);
/* Get parent fid and object name */
mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
buf = mdd_links_get(env, mdd_obj);
- if (IS_ERR(buf))
- GOTO(out, rc = PTR_ERR(buf));
mdd_read_unlock(env, mdd_obj);
mdd_object_put(env, mdd_obj);
- if (rc < 0)
- GOTO(out, rc);
+ if (IS_ERR(buf))
+ GOTO(out, rc = PTR_ERR(buf));
leh = buf->lb_buf;
lee = (struct link_ea_entry *)(leh + 1); /* link #0 */
pli->pli_fids[pli->pli_fidcount] = *tmpfid;
}
- /* Verify that our path hasn't changed since we started the lookup */
+ /* Verify that our path hasn't changed since we started the lookup.
+ Record the current index, and verify the path resolves to the
+ same fid. If it does, then the path is correct as of this index. */
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ pli->pli_currec = mdd->mdd_cl.mc_index;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
rc = mdd_path2fid(env, mdd, ptr, &pli->pli_fid);
if (rc) {
CDEBUG(D_INFO, "mdd_path2fid(%s) failed %d\n", ptr, rc);
PFID(&pli->pli_fid));
GOTO(out, rc = -EAGAIN);
}
-
+ ptr++; /* skip leading / */
memmove(pli->pli_path, ptr, pli->pli_path + pli->pli_pathlen - ptr);
EXIT;
out:
- if (buf && !IS_ERR(buf) && buf->lb_vmalloc)
+ if (buf && !IS_ERR(buf) && buf->lb_len > OBD_ALLOC_BIG)
/* if we vmalloced a large buffer drop it */
mdd_buf_put(buf);
return rc;
}
+static int mdd_path_historic(const struct lu_env *env,
+ struct path_lookup_info *pli)
+{
+ return 0;
+}
+
/* Returns the full path to this fid, as of changelog record recno. */
static int mdd_path(const struct lu_env *env, struct md_object *obj,
- char *path, int pathlen, __u64 recno, int *linkno)
+ char *path, int pathlen, __u64 *recno, int *linkno)
{
struct path_lookup_info *pli;
int tries = 3;
RETURN(-EOVERFLOW);
if (mdd_is_root(mdo2mdd(obj), mdd_object_fid(md2mdd_obj(obj)))) {
- path[0] = '/';
- path[1] = '\0';
+ path[0] = '\0';
RETURN(0);
}
RETURN(-ENOMEM);
pli->pli_mdd_obj = md2mdd_obj(obj);
- pli->pli_recno = recno;
+ pli->pli_recno = *recno;
pli->pli_path = path;
pli->pli_pathlen = pathlen;
pli->pli_linkno = *linkno;
while (tries-- && rc == -EAGAIN)
rc = mdd_path_current(env, pli);
-#if 0 /* We need old path names only for replication */
/* For historical path lookup, the current links may not have existed
* at "recno" time. We must switch over to earlier links/parents
* by using the changelog records. If the earlier parent doesn't
* We may ignore this problem for the initial implementation and
* state that an "original" hardlink must still exist for us to find
* historic path name. */
- if (pli->pli_recno != -1)
+ if (pli->pli_recno != -1) {
rc = mdd_path_historic(env, pli);
-#endif
-
- /* return next link index to caller */
- *linkno = pli->pli_linkno;
+ } else {
+ *recno = pli->pli_currec;
+ /* Return next link index to caller */
+ *linkno = pli->pli_linkno;
+ }
OBD_FREE_PTR(pli);
rc = mdd_la_get(env, obj, la, BYPASS_CAPA);
if (rc == 0) {
mdd_flags_xlate(obj, la->la_flags);
- if (S_ISDIR(la->la_mode) && la->la_nlink == 1)
- obj->mod_flags |= MNLINK_OBJ;
- }
- RETURN(rc);
-}
-
-/* get only inode attributes */
-int mdd_iattr_get(const struct lu_env *env, struct mdd_object *mdd_obj,
- struct md_attr *ma)
-{
- int rc = 0;
- ENTRY;
-
- if (ma->ma_valid & MA_INODE)
- RETURN(0);
-
- rc = mdd_la_get(env, mdd_obj, &ma->ma_attr,
- mdd_object_capa(env, mdd_obj));
- if (rc == 0)
- ma->ma_valid |= MA_INODE;
- RETURN(rc);
-}
-
-static int mdd_get_default_md(struct mdd_object *mdd_obj,
- struct lov_mds_md *lmm, int *size)
-{
- struct lov_desc *ldesc;
- struct mdd_device *mdd = mdo2mdd(&mdd_obj->mod_obj);
- ENTRY;
-
- ldesc = &mdd->mdd_obd_dev->u.mds.mds_lov_desc;
- LASSERT(ldesc != NULL);
-
- if (!lmm)
- RETURN(0);
-
- lmm->lmm_magic = LOV_MAGIC_V1;
- lmm->lmm_object_gr = LOV_OBJECT_GROUP_DEFAULT;
- lmm->lmm_pattern = ldesc->ld_pattern;
- lmm->lmm_stripe_size = ldesc->ld_default_stripe_size;
- lmm->lmm_stripe_count = ldesc->ld_default_stripe_count;
- *size = sizeof(struct lov_mds_md);
-
- RETURN(sizeof(struct lov_mds_md));
-}
-
-/* get lov EA only */
-static int __mdd_lmm_get(const struct lu_env *env,
- struct mdd_object *mdd_obj, struct md_attr *ma)
-{
- int rc;
- ENTRY;
-
- if (ma->ma_valid & MA_LOV)
- RETURN(0);
-
- rc = mdd_get_md(env, mdd_obj, ma->ma_lmm, &ma->ma_lmm_size,
- MDS_LOV_MD_NAME);
-
- if (rc == 0 && (ma->ma_need & MA_LOV_DEF)) {
- rc = mdd_get_default_md(mdd_obj, ma->ma_lmm,
- &ma->ma_lmm_size);
- }
-
- if (rc > 0) {
- ma->ma_valid |= MA_LOV;
- rc = 0;
}
RETURN(rc);
}
-int mdd_lmm_get_locked(const struct lu_env *env, struct mdd_object *mdd_obj,
- struct md_attr *ma)
-{
- int rc;
- ENTRY;
-
- mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
- rc = __mdd_lmm_get(env, mdd_obj, ma);
- mdd_read_unlock(env, mdd_obj);
- RETURN(rc);
-}
-
-/* get lmv EA only*/
-static int __mdd_lmv_get(const struct lu_env *env,
- struct mdd_object *mdd_obj, struct md_attr *ma)
-{
- int rc;
- ENTRY;
-
- if (ma->ma_valid & MA_LMV)
- RETURN(0);
-
- rc = mdd_get_md(env, mdd_obj, ma->ma_lmv, &ma->ma_lmv_size,
- MDS_LMV_MD_NAME);
- if (rc > 0) {
- ma->ma_valid |= MA_LMV;
- rc = 0;
- }
- RETURN(rc);
-}
-
-static int mdd_attr_get_internal(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- struct md_attr *ma)
-{
- int rc = 0;
- ENTRY;
-
- if (ma->ma_need & MA_INODE)
- rc = mdd_iattr_get(env, mdd_obj, ma);
-
- if (rc == 0 && ma->ma_need & MA_LOV) {
- if (S_ISREG(mdd_object_type(mdd_obj)) ||
- S_ISDIR(mdd_object_type(mdd_obj)))
- rc = __mdd_lmm_get(env, mdd_obj, ma);
- }
- if (rc == 0 && ma->ma_need & MA_LMV) {
- if (S_ISDIR(mdd_object_type(mdd_obj)))
- rc = __mdd_lmv_get(env, mdd_obj, ma);
- }
-#ifdef CONFIG_FS_POSIX_ACL
- if (rc == 0 && ma->ma_need & MA_ACL_DEF) {
- if (S_ISDIR(mdd_object_type(mdd_obj)))
- rc = mdd_def_acl_get(env, mdd_obj, ma);
- }
-#endif
- CDEBUG(D_INODE, "after getattr rc = %d, ma_valid = "LPX64"\n",
- rc, ma->ma_valid);
- RETURN(rc);
-}
-
-int mdd_attr_get_internal_locked(const struct lu_env *env,
- struct mdd_object *mdd_obj, struct md_attr *ma)
-{
- int rc;
- int needlock = ma->ma_need & (MA_LOV | MA_LMV | MA_ACL_DEF);
-
- if (needlock)
- mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
- rc = mdd_attr_get_internal(env, mdd_obj, ma);
- if (needlock)
- mdd_read_unlock(env, mdd_obj);
- return rc;
-}
-
/*
* No permission check is needed.
*/
-static int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma)
+int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
+ struct md_attr *ma)
{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
- int rc;
-
+ int rc;
ENTRY;
- rc = mdd_attr_get_internal_locked(env, mdd_obj, ma);
+
+ return mdd_la_get(env, md2mdd_obj(obj), &ma->ma_attr,
+ mdd_object_capa(env, md2mdd_obj(obj)));
RETURN(rc);
}
ENTRY;
- LASSERT(mdd_object_exists(mdd_obj));
+ if (mdd_object_exists(mdd_obj) == 0) {
+ CERROR("%s: object "DFID" not found: rc = -2\n",
+ mdd_obj_dev_name(mdd_obj),PFID(mdd_object_fid(mdd_obj)));
+ return -ENOENT;
+ }
mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
rc = mdo_xattr_get(env, mdd_obj, buf, name,
int rc;
ENTRY;
- LASSERT(mdd_object_exists(mdd_obj));
+ if (mdd_object_exists(mdd_obj) == 0) {
+ CERROR("%s: object "DFID" not found: rc = -2\n",
+ mdd_obj_dev_name(mdd_obj),PFID(mdd_object_fid(mdd_obj)));
+ return -ENOENT;
+ }
next = mdd_object_child(mdd_obj);
mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
RETURN(rc);
}
+int mdd_declare_object_create_internal(const struct lu_env *env,
+ struct mdd_object *p,
+ struct mdd_object *c,
+ struct lu_attr *attr,
+ struct thandle *handle,
+ const struct md_op_spec *spec)
+{
+ struct dt_object_format *dof = &mdd_env_info(env)->mti_dof;
+ const struct dt_index_features *feat = spec->sp_feat;
+ int rc;
+ ENTRY;
+
+ if (feat != &dt_directory_features && feat != NULL) {
+ dof->dof_type = DFT_INDEX;
+ dof->u.dof_idx.di_feat = feat;
+
+ } else {
+ dof->dof_type = dt_mode_to_dft(attr->la_mode);
+ if (dof->dof_type == DFT_REGULAR) {
+ dof->u.dof_reg.striped =
+ md_should_create(spec->sp_cr_flags);
+ if (spec->sp_cr_flags & MDS_OPEN_HAS_EA)
+ dof->u.dof_reg.striped = 0;
+ /* is this replay? */
+ if (spec->no_create)
+ dof->u.dof_reg.striped = 0;
+ }
+ }
+
+ rc = mdo_declare_create_obj(env, c, attr, NULL, dof, handle);
+
+ RETURN(rc);
+}
+
int mdd_object_create_internal(const struct lu_env *env, struct mdd_object *p,
- struct mdd_object *c, struct md_attr *ma,
+ struct mdd_object *c, struct lu_attr *attr,
struct thandle *handle,
const struct md_op_spec *spec)
{
- struct lu_attr *attr = &ma->ma_attr;
struct dt_allocation_hint *hint = &mdd_env_info(env)->mti_hint;
struct dt_object_format *dof = &mdd_env_info(env)->mti_dof;
- const struct dt_index_features *feat = spec->sp_feat;
int rc;
ENTRY;
- if (!mdd_object_exists(c)) {
- struct dt_object *next = mdd_object_child(c);
- LASSERT(next);
+ LASSERT(!mdd_object_exists(c));
- if (feat != &dt_directory_features && feat != NULL)
- dof->dof_type = DFT_INDEX;
- else
- dof->dof_type = dt_mode_to_dft(attr->la_mode);
-
- dof->u.dof_idx.di_feat = feat;
+ rc = mdo_create_obj(env, c, attr, hint, dof, handle);
- /* @hint will be initialized by underlying device. */
- next->do_ops->do_ah_init(env, hint,
- p ? mdd_object_child(p) : NULL,
- attr->la_mode & S_IFMT);
+ LASSERT(ergo(rc == 0, mdd_object_exists(c)));
- rc = mdo_create_obj(env, c, attr, hint, dof, handle);
- LASSERT(ergo(rc == 0, mdd_object_exists(c)));
- } else
- rc = -EEXIST;
-
- RETURN(rc);
+ RETURN(rc);
}
/**
RETURN(0);
}
-int mdd_attr_set_internal(const struct lu_env *env,
- struct mdd_object *obj,
- struct lu_attr *attr,
- struct thandle *handle,
- int needacl)
+int mdd_attr_set_internal(const struct lu_env *env, struct mdd_object *obj,
+ struct lu_attr *attr, struct thandle *handle,
+ int needacl)
{
int rc;
ENTRY;
}
int mdd_attr_check_set_internal(const struct lu_env *env,
- struct mdd_object *obj,
- struct lu_attr *attr,
- struct thandle *handle,
- int needacl)
+ struct mdd_object *obj, struct lu_attr *attr,
+ struct thandle *handle, int needacl)
{
int rc;
ENTRY;
RETURN(rc);
}
-static int mdd_attr_set_internal_locked(const struct lu_env *env,
- struct mdd_object *obj,
- struct lu_attr *attr,
- struct thandle *handle,
- int needacl)
-{
- int rc;
- ENTRY;
-
- needacl = needacl && (attr->la_valid & LA_MODE);
- if (needacl)
- mdd_write_lock(env, obj, MOR_TGT_CHILD);
- rc = mdd_attr_set_internal(env, obj, attr, handle, needacl);
- if (needacl)
- mdd_write_unlock(env, obj);
- RETURN(rc);
-}
-
-int mdd_attr_check_set_internal_locked(const struct lu_env *env,
- struct mdd_object *obj,
- struct lu_attr *attr,
- struct thandle *handle,
- int needacl)
-{
- int rc;
- ENTRY;
-
- needacl = needacl && (attr->la_valid & LA_MODE);
- if (needacl)
- mdd_write_lock(env, obj, MOR_TGT_CHILD);
- rc = mdd_attr_check_set_internal(env, obj, attr, handle, needacl);
- if (needacl)
- mdd_write_unlock(env, obj);
- RETURN(rc);
-}
-
-int __mdd_xattr_set(const struct lu_env *env, struct mdd_object *obj,
- const struct lu_buf *buf, const char *name,
- int fl, struct thandle *handle)
-{
- struct lustre_capa *capa = mdd_object_capa(env, obj);
- int rc = -EINVAL;
- ENTRY;
-
- if (buf->lb_buf && buf->lb_len > 0)
- rc = mdo_xattr_set(env, obj, buf, name, 0, handle, capa);
- else if (buf->lb_buf == NULL && buf->lb_len == 0)
- rc = mdo_xattr_del(env, obj, name, handle, capa);
-
- RETURN(rc);
-}
-
/*
* This gives the same functionality as the code between
* sys_chmod and inode_setattr
* This API is ported from mds_fix_attr but remove some unnecesssary stuff.
*/
static int mdd_fix_attr(const struct lu_env *env, struct mdd_object *obj,
- struct lu_attr *la, const struct md_attr *ma)
+ struct lu_attr *la, const unsigned long flags)
{
struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
- struct md_ucred *uc = md_ucred(env);
+ struct lu_ucred *uc;
int rc;
ENTRY;
if (la->la_valid & (LA_NLINK | LA_RDEV | LA_BLKSIZE))
RETURN(-EPERM);
+ /* export destroy does not have ->le_ses, but we may want
+ * to drop LUSTRE_SOM_FL. */
+ uc = lu_ucred_check(env);
+ if (uc == NULL)
+ RETURN(0);
+
rc = mdd_la_get(env, obj, tmp_la, BYPASS_CAPA);
if (rc)
RETURN(rc);
if (la->la_valid == LA_CTIME) {
- if (!(ma->ma_attr_flags & MDS_PERM_BYPASS))
+ if (!(flags & MDS_PERM_BYPASS))
/* This is only for set ctime when rename's source is
* on remote MDS. */
- rc = mdd_may_delete(env, NULL, obj,
- (struct md_attr *)ma, 1, 0);
+ rc = mdd_may_delete(env, NULL, obj, tmp_la, NULL, 1, 0);
if (rc == 0 && la->la_ctime <= tmp_la->la_ctime)
la->la_valid &= ~LA_CTIME;
RETURN(rc);
if (la->la_valid == LA_ATIME) {
/* This is atime only set for read atime update on close. */
- if (la->la_atime <= tmp_la->la_atime +
- mdd_obj2mdd_dev(obj)->mdd_atime_diff)
+ if (la->la_atime >= tmp_la->la_atime &&
+ la->la_atime < (tmp_la->la_atime +
+ mdd_obj2mdd_dev(obj)->mdd_atime_diff))
la->la_valid &= ~LA_ATIME;
RETURN(0);
}
unsigned int newflags = la->la_flags &
(LUSTRE_IMMUTABLE_FL | LUSTRE_APPEND_FL);
- if ((uc->mu_fsuid != tmp_la->la_uid) &&
- !mdd_capable(uc, CFS_CAP_FOWNER))
- RETURN(-EPERM);
+ if ((uc->uc_fsuid != tmp_la->la_uid) &&
+ !mdd_capable(uc, CFS_CAP_FOWNER))
+ RETURN(-EPERM);
/* XXX: the IMMUTABLE and APPEND_ONLY flags can
* only be changed by the relevant capability. */
if ((mdd_is_immutable(obj) || mdd_is_append(obj)) &&
(la->la_valid & ~LA_FLAGS) &&
- !(ma->ma_attr_flags & MDS_PERM_BYPASS))
+ !(flags & MDS_PERM_BYPASS))
RETURN(-EPERM);
- /* Check for setting the obj time. */
- if ((la->la_valid & (LA_MTIME | LA_ATIME | LA_CTIME)) &&
- !(la->la_valid & ~(LA_MTIME | LA_ATIME | LA_CTIME))) {
- if ((uc->mu_fsuid != tmp_la->la_uid) &&
- !mdd_capable(uc, CFS_CAP_FOWNER)) {
- rc = mdd_permission_internal_locked(env, obj, tmp_la,
- MAY_WRITE,
- MOR_TGT_CHILD);
- if (rc)
- RETURN(rc);
+ /* Check for setting the obj time. */
+ if ((la->la_valid & (LA_MTIME | LA_ATIME | LA_CTIME)) &&
+ !(la->la_valid & ~(LA_MTIME | LA_ATIME | LA_CTIME))) {
+ if ((uc->uc_fsuid != tmp_la->la_uid) &&
+ !mdd_capable(uc, CFS_CAP_FOWNER)) {
+ rc = mdd_permission_internal(env, obj, tmp_la,
+ MAY_WRITE);
+ if (rc)
+ RETURN(rc);
+ }
+ }
+
+ if (la->la_valid & LA_KILL_SUID) {
+ la->la_valid &= ~LA_KILL_SUID;
+ if ((tmp_la->la_mode & S_ISUID) &&
+ !(la->la_valid & LA_MODE)) {
+ la->la_mode = tmp_la->la_mode;
+ la->la_valid |= LA_MODE;
}
+ la->la_mode &= ~S_ISUID;
+ }
+
+ if (la->la_valid & LA_KILL_SGID) {
+ la->la_valid &= ~LA_KILL_SGID;
+ if (((tmp_la->la_mode & (S_ISGID | S_IXGRP)) ==
+ (S_ISGID | S_IXGRP)) &&
+ !(la->la_valid & LA_MODE)) {
+ la->la_mode = tmp_la->la_mode;
+ la->la_valid |= LA_MODE;
+ }
+ la->la_mode &= ~S_ISGID;
}
/* Make sure a caller can chmod. */
if (la->la_valid & LA_MODE) {
- /* Bypass la_vaild == LA_MODE,
- * this is for changing file with SUID or SGID. */
- if ((la->la_valid & ~LA_MODE) &&
- !(ma->ma_attr_flags & MDS_PERM_BYPASS) &&
- (uc->mu_fsuid != tmp_la->la_uid) &&
- !mdd_capable(uc, CFS_CAP_FOWNER))
- RETURN(-EPERM);
+ if (!(flags & MDS_PERM_BYPASS) &&
+ (uc->uc_fsuid != tmp_la->la_uid) &&
+ !mdd_capable(uc, CFS_CAP_FOWNER))
+ RETURN(-EPERM);
- if (la->la_mode == (umode_t) -1)
+ if (la->la_mode == (cfs_umode_t) -1)
la->la_mode = tmp_la->la_mode;
else
la->la_mode = (la->la_mode & S_IALLUGO) |
if (la->la_valid & LA_UID) {
if (la->la_uid == (uid_t) -1)
la->la_uid = tmp_la->la_uid;
- if (((uc->mu_fsuid != tmp_la->la_uid) ||
- (la->la_uid != tmp_la->la_uid)) &&
- !mdd_capable(uc, CFS_CAP_CHOWN))
- RETURN(-EPERM);
+ if (((uc->uc_fsuid != tmp_la->la_uid) ||
+ (la->la_uid != tmp_la->la_uid)) &&
+ !mdd_capable(uc, CFS_CAP_CHOWN))
+ RETURN(-EPERM);
/* If the user or group of a non-directory has been
* changed by a non-root user, remove the setuid bit.
if (la->la_valid & LA_GID) {
if (la->la_gid == (gid_t) -1)
la->la_gid = tmp_la->la_gid;
- if (((uc->mu_fsuid != tmp_la->la_uid) ||
- ((la->la_gid != tmp_la->la_gid) &&
- !lustre_in_group_p(uc, la->la_gid))) &&
- !mdd_capable(uc, CFS_CAP_CHOWN))
- RETURN(-EPERM);
+ if (((uc->uc_fsuid != tmp_la->la_uid) ||
+ ((la->la_gid != tmp_la->la_gid) &&
+ !lustre_in_group_p(uc, la->la_gid))) &&
+ !mdd_capable(uc, CFS_CAP_CHOWN))
+ RETURN(-EPERM);
/* Likewise, if the user or group of a non-directory
* has been changed by a non-root user, remove the
/* For both Size-on-MDS case and truncate case,
* "la->la_valid & (LA_SIZE | LA_BLOCKS)" are ture.
- * We distinguish them by "ma->ma_attr_flags & MDS_SOM".
+ * We distinguish them by "flags & MDS_SOM".
* For SOM case, it is true, the MAY_WRITE perm has been checked
* when open, no need check again. For truncate case, it is false,
* the MAY_WRITE perm should be checked here. */
- if (ma->ma_attr_flags & MDS_SOM) {
+ if (flags & MDS_SOM) {
/* For the "Size-on-MDS" setattr update, merge coming
* attributes with the set in the inode. BUG 10641 */
if ((la->la_valid & LA_ATIME) &&
la->la_valid &= ~(LA_MTIME | LA_CTIME);
} else {
if (la->la_valid & (LA_SIZE | LA_BLOCKS)) {
- if (!((ma->ma_attr_flags & MDS_OPEN_OWNEROVERRIDE) &&
- (uc->mu_fsuid == tmp_la->la_uid)) &&
- !(ma->ma_attr_flags & MDS_PERM_BYPASS)) {
- rc = mdd_permission_internal_locked(env, obj,
- tmp_la, MAY_WRITE,
- MOR_TGT_CHILD);
+ if (!((flags & MDS_OPEN_OWNEROVERRIDE) &&
+ (uc->uc_fsuid == tmp_la->la_uid)) &&
+ !(flags & MDS_PERM_BYPASS)) {
+ rc = mdd_permission_internal(env, obj,
+ tmp_la, MAY_WRITE);
if (rc)
RETURN(rc);
}
* \param mdd_obj - mdd_object of change
* \param handle - transacion handle
*/
-static int mdd_changelog_data_store(const struct lu_env *env,
- struct mdd_device *mdd,
- enum changelog_rec_type type,
- struct mdd_object *mdd_obj,
- struct thandle *handle)
+static int mdd_changelog_data_store(const struct lu_env *env,
+ struct mdd_device *mdd,
+ enum changelog_rec_type type,
+ int flags, struct mdd_object *mdd_obj,
+ struct thandle *handle)
{
- const struct lu_fid *tfid = mdo2fid(mdd_obj);
- struct llog_changelog_rec *rec;
- struct lu_buf *buf;
- int reclen;
- int rc;
+ const struct lu_fid *tfid = mdo2fid(mdd_obj);
+ struct llog_changelog_rec *rec;
+ struct lu_buf *buf;
+ int reclen;
+ int rc;
+ /* Not recording */
if (!(mdd->mdd_cl.mc_flags & CLM_ON))
RETURN(0);
+ if ((mdd->mdd_cl.mc_mask & (1 << type)) == 0)
+ RETURN(0);
- LASSERT(handle != NULL);
LASSERT(mdd_obj != NULL);
+ LASSERT(handle != NULL);
- if ((type == CL_SETATTR) &&
+ if ((type >= CL_MTIME) && (type <= CL_ATIME) &&
cfs_time_before_64(mdd->mdd_cl.mc_starttime, mdd_obj->mod_cltime)) {
/* Don't need multiple updates in this log */
/* Don't check under lock - no big deal if we get an extra
buf = mdd_buf_alloc(env, reclen);
if (buf->lb_buf == NULL)
RETURN(-ENOMEM);
- rec = (struct llog_changelog_rec *)buf->lb_buf;
+ rec = buf->lb_buf;
- rec->cr_flags = CLF_VERSION;
- rec->cr_type = (__u32)type;
- rec->cr_tfid = *tfid;
- rec->cr_namelen = 0;
+ rec->cr.cr_flags = CLF_VERSION | (CLF_FLAGMASK & flags);
+ rec->cr.cr_type = (__u32)type;
+ rec->cr.cr_tfid = *tfid;
+ rec->cr.cr_namelen = 0;
mdd_obj->mod_cltime = cfs_time_current_64();
- rc = mdd_changelog_llog_write(mdd, rec, handle);
- if (rc < 0) {
- CERROR("changelog failed: rc=%d op%d t"DFID"\n",
- rc, type, PFID(tfid));
- return -EFAULT;
+ rc = mdd_changelog_store(env, mdd, rec, handle);
+
+ RETURN(rc);
+}
+
+int mdd_changelog(const struct lu_env *env, enum changelog_rec_type type,
+ int flags, struct md_object *obj)
+{
+ struct thandle *handle;
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ struct mdd_device *mdd = mdo2mdd(obj);
+ int rc;
+ ENTRY;
+
+ handle = mdd_trans_create(env, mdd);
+ if (IS_ERR(handle))
+ RETURN(PTR_ERR(handle));
+
+ rc = mdd_declare_changelog_store(env, mdd, NULL, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_changelog_data_store(env, mdd, type, flags, mdd_obj,
+ handle);
+
+stop:
+ mdd_trans_stop(env, mdd, rc, handle);
+
+ RETURN(rc);
+}
+
+/**
+ * Save LMA extended attributes with data from \a ma.
+ *
+ * HSM and Size-On-MDS data will be extracted from \ma if they are valid, if
+ * not, LMA EA will be first read from disk, modified and write back.
+ *
+ */
+/* Precedence for choosing record type when multiple
+ * attributes change: setattr > mtime > ctime > atime
+ * (ctime changes when mtime does, plus chmod/chown.
+ * atime and ctime are independent.) */
+static int mdd_attr_set_changelog(const struct lu_env *env,
+ struct md_object *obj, struct thandle *handle,
+ __u64 valid)
+{
+ struct mdd_device *mdd = mdo2mdd(obj);
+ int bits, type = 0;
+
+ bits = (valid & ~(LA_CTIME|LA_MTIME|LA_ATIME)) ? 1 << CL_SETATTR : 0;
+ bits |= (valid & LA_MTIME) ? 1 << CL_MTIME : 0;
+ bits |= (valid & LA_CTIME) ? 1 << CL_CTIME : 0;
+ bits |= (valid & LA_ATIME) ? 1 << CL_ATIME : 0;
+ bits = bits & mdd->mdd_cl.mc_mask;
+ if (bits == 0)
+ return 0;
+
+ /* The record type is the lowest non-masked set bit */
+ while (bits && ((bits & 1) == 0)) {
+ bits = bits >> 1;
+ type++;
}
- return 0;
+ /* FYI we only store the first CLF_FLAGMASK bits of la_valid */
+ return mdd_changelog_data_store(env, mdd, type, (int)valid,
+ md2mdd_obj(obj), handle);
+}
+
+static int mdd_declare_attr_set(const struct lu_env *env,
+ struct mdd_device *mdd,
+ struct mdd_object *obj,
+ const struct lu_attr *attr,
+ struct thandle *handle)
+{
+ int rc;
+
+ rc = mdo_declare_attr_set(env, obj, attr, handle);
+ if (rc)
+ return rc;
+
+#ifdef CONFIG_FS_POSIX_ACL
+ if (attr->la_valid & LA_MODE) {
+ mdd_read_lock(env, obj, MOR_TGT_CHILD);
+ rc = mdo_xattr_get(env, obj, &LU_BUF_NULL,
+ XATTR_NAME_ACL_ACCESS, BYPASS_CAPA);
+ mdd_read_unlock(env, obj);
+ if (rc == -EOPNOTSUPP || rc == -ENODATA)
+ rc = 0;
+ else if (rc < 0)
+ return rc;
+
+ if (rc != 0) {
+ struct lu_buf *buf = mdd_buf_get(env, NULL, rc);
+ rc = mdo_declare_xattr_set(env, obj, buf,
+ XATTR_NAME_ACL_ACCESS, 0,
+ handle);
+ if (rc)
+ return rc;
+ }
+ }
+#endif
+
+ rc = mdd_declare_changelog_store(env, mdd, NULL, handle);
+ return rc;
}
/* set attr and LOV EA at once, return updated attr */
-static int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
- const struct md_attr *ma)
+int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
+ const struct md_attr *ma)
{
struct mdd_object *mdd_obj = md2mdd_obj(obj);
struct mdd_device *mdd = mdo2mdd(obj);
struct thandle *handle;
- struct lov_mds_md *lmm = NULL;
- struct llog_cookie *logcookies = NULL;
- int rc, lmm_size = 0, cookie_size = 0;
struct lu_attr *la_copy = &mdd_env_info(env)->mti_la_for_fix;
-#ifdef HAVE_QUOTA_SUPPORT
- struct obd_device *obd = mdd->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qnids[MAXQUOTAS] = { 0, 0 };
- unsigned int qoids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0, block_count = 0;
- int inode_pending = 0, block_pending = 0;
-#endif
+ const struct lu_attr *la = &ma->ma_attr;
+ int rc;
ENTRY;
- mdd_setattr_txn_param_build(env, obj, (struct md_attr *)ma,
- MDD_TXN_ATTR_SET_OP);
- handle = mdd_trans_start(env, mdd);
+ /* we do not use ->attr_set() for LOV/SOM/HSM EA any more */
+ LASSERT((ma->ma_valid & MA_LOV) == 0);
+ LASSERT((ma->ma_valid & MA_HSM) == 0);
+ LASSERT((ma->ma_valid & MA_SOM) == 0);
+
+ *la_copy = ma->ma_attr;
+ rc = mdd_fix_attr(env, mdd_obj, la_copy, ma->ma_attr_flags);
+ if (rc)
+ RETURN(rc);
+
+ /* setattr on "close" only change atime, or do nothing */
+ if (la->la_valid == LA_ATIME && la_copy->la_valid == 0)
+ RETURN(0);
+
+ handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
RETURN(PTR_ERR(handle));
- /*TODO: add lock here*/
- /* start a log jounal handle if needed */
- if (S_ISREG(mdd_object_type(mdd_obj)) &&
- ma->ma_attr.la_valid & (LA_UID | LA_GID)) {
- lmm_size = mdd_lov_mdsize(env, mdd);
- lmm = mdd_max_lmm_get(env, mdd);
- if (lmm == NULL)
- GOTO(cleanup, rc = -ENOMEM);
-
- rc = mdd_get_md_locked(env, mdd_obj, lmm, &lmm_size,
- MDS_LOV_MD_NAME);
-
- if (rc < 0)
- GOTO(cleanup, rc);
- }
- if (ma->ma_attr.la_valid & (LA_MTIME | LA_CTIME))
- CDEBUG(D_INODE, "setting mtime "LPU64", ctime "LPU64"\n",
- ma->ma_attr.la_mtime, ma->ma_attr.la_ctime);
+ rc = mdd_declare_attr_set(env, mdd, mdd_obj, la, handle);
+ if (rc)
+ GOTO(stop, rc);
- *la_copy = ma->ma_attr;
- rc = mdd_fix_attr(env, mdd_obj, la_copy, ma);
+ rc = mdd_trans_start(env, mdd, handle);
if (rc)
- GOTO(cleanup, rc);
-
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota && la_copy->la_valid & (LA_UID | LA_GID)) {
- struct lu_attr *la_tmp = &mdd_env_info(env)->mti_la;
-
- rc = mdd_la_get(env, mdd_obj, la_tmp, BYPASS_CAPA);
- if (!rc) {
- quota_opc = FSFILT_OP_SETATTR;
- mdd_quota_wrapper(la_copy, qnids);
- mdd_quota_wrapper(la_tmp, qoids);
- /* get file quota for new owner */
- lquota_chkquota(mds_quota_interface_ref, obd,
- qnids[USRQUOTA], qnids[GRPQUOTA], 1,
- &inode_pending, NULL, 0);
- block_count = (la_tmp->la_blocks + 7) >> 3;
- if (block_count)
- /* get block quota for new owner */
- lquota_chkquota(mds_quota_interface_ref, obd,
- qnids[USRQUOTA],
- qnids[GRPQUOTA],
- block_count, &block_pending,
- NULL, LQUOTA_FLAGS_BLK);
- }
- }
-#endif
+ GOTO(stop, rc);
+
+ /* permission changes may require sync operation */
+ if (ma->ma_attr.la_valid & (LA_MODE|LA_UID|LA_GID))
+ handle->th_sync |= !!mdd->mdd_sync_permission;
+
+ if (la->la_valid & (LA_MTIME | LA_CTIME))
+ CDEBUG(D_INODE, "setting mtime "LPU64", ctime "LPU64"\n",
+ la->la_mtime, la->la_ctime);
if (la_copy->la_valid & LA_FLAGS) {
- rc = mdd_attr_set_internal_locked(env, mdd_obj, la_copy,
- handle, 1);
+ rc = mdd_attr_set_internal(env, mdd_obj, la_copy, handle, 1);
if (rc == 0)
mdd_flags_xlate(mdd_obj, la_copy->la_flags);
} else if (la_copy->la_valid) { /* setattr */
- rc = mdd_attr_set_internal_locked(env, mdd_obj, la_copy,
- handle, 1);
- /* journal chown/chgrp in llog, just like unlink */
- if (rc == 0 && lmm_size){
- cookie_size = mdd_lov_cookiesize(env, mdd);
- logcookies = mdd_max_cookie_get(env, mdd);
- if (logcookies == NULL)
- GOTO(cleanup, rc = -ENOMEM);
-
- if (mdd_setattr_log(env, mdd, ma, lmm, lmm_size,
- logcookies, cookie_size) <= 0)
- logcookies = NULL;
- }
+ rc = mdd_attr_set_internal(env, mdd_obj, la_copy, handle, 1);
}
- if (rc == 0 && ma->ma_valid & MA_LOV) {
- umode_t mode;
-
- mode = mdd_object_type(mdd_obj);
- if (S_ISREG(mode) || S_ISDIR(mode)) {
- rc = mdd_lsm_sanity_check(env, mdd_obj);
- if (rc)
- GOTO(cleanup, rc);
-
- rc = mdd_lov_set_md(env, NULL, mdd_obj, ma->ma_lmm,
- ma->ma_lmm_size, handle, 1);
- }
-
- }
-cleanup:
- if ((rc == 0) && (ma->ma_attr.la_valid & (LA_MTIME | LA_CTIME)))
- rc = mdd_changelog_data_store(env, mdd, CL_SETATTR, mdd_obj,
- handle);
+ if (rc == 0)
+ rc = mdd_attr_set_changelog(env, obj, handle,
+ la->la_valid);
+stop:
mdd_trans_stop(env, mdd, rc, handle);
- if (rc == 0 && (lmm != NULL && lmm_size > 0 )) {
- /*set obd attr, if needed*/
- rc = mdd_lov_setattr_async(env, mdd_obj, lmm, lmm_size,
- logcookies);
- }
-#ifdef HAVE_QUOTA_SUPPORT
- if (quota_opc) {
- if (inode_pending)
- lquota_pending_commit(mds_quota_interface_ref, obd,
- qnids[USRQUOTA], qnids[GRPQUOTA],
- 1, 0);
- if (block_pending)
- lquota_pending_commit(mds_quota_interface_ref, obd,
- qnids[USRQUOTA], qnids[GRPQUOTA],
- block_count, 1);
- /* Trigger dqrel/dqacq for original owner and new owner.
- * If failed, the next call for lquota_chkquota will
- * process it. */
- lquota_adjust(mds_quota_interface_ref, obd, qnids, qoids, rc,
- quota_opc);
- }
-#endif
RETURN(rc);
}
-int mdd_xattr_set_txn(const struct lu_env *env, struct mdd_object *obj,
- const struct lu_buf *buf, const char *name, int fl,
- struct thandle *handle)
+static int mdd_xattr_sanity_check(const struct lu_env *env,
+ struct mdd_object *obj)
{
- int rc;
- ENTRY;
+ struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
+ struct lu_ucred *uc = lu_ucred_assert(env);
+ int rc;
+ ENTRY;
- mdd_write_lock(env, obj, MOR_TGT_CHILD);
- rc = __mdd_xattr_set(env, obj, buf, name, fl, handle);
- mdd_write_unlock(env, obj);
+ if (mdd_is_immutable(obj) || mdd_is_append(obj))
+ RETURN(-EPERM);
- RETURN(rc);
+ rc = mdd_la_get(env, obj, tmp_la, BYPASS_CAPA);
+ if (rc)
+ RETURN(rc);
+
+ if ((uc->uc_fsuid != tmp_la->la_uid) &&
+ !mdd_capable(uc, CFS_CAP_FOWNER))
+ RETURN(-EPERM);
+
+ RETURN(rc);
}
-static int mdd_xattr_sanity_check(const struct lu_env *env,
- struct mdd_object *obj)
+static int mdd_declare_xattr_set(const struct lu_env *env,
+ struct mdd_device *mdd,
+ struct mdd_object *obj,
+ const struct lu_buf *buf,
+ const char *name,
+ int fl, struct thandle *handle)
{
- struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
- struct md_ucred *uc = md_ucred(env);
- int rc;
- ENTRY;
+ int rc;
- if (mdd_is_immutable(obj) || mdd_is_append(obj))
- RETURN(-EPERM);
+ rc = mdo_declare_xattr_set(env, obj, buf, name, fl, handle);
+ if (rc)
+ return rc;
- rc = mdd_la_get(env, obj, tmp_la, BYPASS_CAPA);
- if (rc)
- RETURN(rc);
+ /* Only record user xattr changes */
+ if ((strncmp("user.", name, 5) == 0)) {
+ rc = mdd_declare_changelog_store(env, mdd, NULL, handle);
+ if (rc)
+ return rc;
+ }
- if ((uc->mu_fsuid != tmp_la->la_uid) &&
- !mdd_capable(uc, CFS_CAP_FOWNER))
- RETURN(-EPERM);
+ /* If HSM data is modified, this could add a changelog */
+ if (strncmp(XATTR_NAME_HSM, name, sizeof(XATTR_NAME_HSM) - 1) == 0)
+ rc = mdd_declare_changelog_store(env, mdd, NULL, handle);
- RETURN(rc);
+ rc = mdd_declare_changelog_store(env, mdd, NULL, handle);
+ return rc;
+}
+
+/*
+ * Compare current and future data of HSM EA and add a changelog if needed.
+ *
+ * Caller should have write-locked \param obj.
+ *
+ * \param buf - Future HSM EA content.
+ * \retval 0 if no changelog is needed or changelog was added properly.
+ * \retval -ve errno if there was a problem
+ */
+static int mdd_hsm_update_locked(const struct lu_env *env,
+ struct md_object *obj,
+ const struct lu_buf *buf,
+ struct thandle *handle)
+{
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct mdd_device *mdd = mdo2mdd(obj);
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ struct lu_buf *current_buf = &info->mti_buf;
+ struct md_hsm *current_mh;
+ struct md_hsm *new_mh;
+ int rc;
+ ENTRY;
+
+ OBD_ALLOC_PTR(current_mh);
+ if (current_mh == NULL)
+ RETURN(-ENOMEM);
+
+ /* Read HSM attrs from disk */
+ current_buf->lb_buf = info->mti_xattr_buf;
+ current_buf->lb_len = sizeof(info->mti_xattr_buf);
+ CLASSERT(sizeof(struct hsm_attrs) <= sizeof(info->mti_xattr_buf));
+ rc = mdo_xattr_get(env, mdd_obj, current_buf, XATTR_NAME_HSM,
+ mdd_object_capa(env, mdd_obj));
+ rc = lustre_buf2hsm(info->mti_xattr_buf, rc, current_mh);
+ if (rc < 0 && rc != -ENODATA)
+ GOTO(free, rc);
+ else if (rc == -ENODATA)
+ current_mh->mh_flags = 0;
+
+ /* Map future HSM xattr */
+ OBD_ALLOC_PTR(new_mh);
+ if (new_mh == NULL)
+ GOTO(free, rc = -ENOMEM);
+ lustre_buf2hsm(buf->lb_buf, buf->lb_len, new_mh);
+
+ /* If HSM flags are different, add a changelog */
+ rc = 0;
+ if (current_mh->mh_flags != new_mh->mh_flags) {
+ int flags = 0;
+ hsm_set_cl_event(&flags, HE_STATE);
+ if (new_mh->mh_flags & HS_DIRTY)
+ hsm_set_cl_flags(&flags, CLF_HSM_DIRTY);
+
+ rc = mdd_changelog_data_store(env, mdd, CL_HSM, flags, mdd_obj,
+ handle);
+ }
+
+ OBD_FREE_PTR(new_mh);
+free:
+ OBD_FREE_PTR(current_mh);
+ return(rc);
}
+
/**
* The caller should guarantee to update the object ctime
* after xattr_set if needed.
*/
static int mdd_xattr_set(const struct lu_env *env, struct md_object *obj,
- const struct lu_buf *buf, const char *name,
- int fl)
+ const struct lu_buf *buf, const char *name,
+ int fl)
{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
- struct mdd_device *mdd = mdo2mdd(obj);
- struct thandle *handle;
- int rc;
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ struct mdd_device *mdd = mdo2mdd(obj);
+ struct thandle *handle;
+ int rc;
ENTRY;
- rc = mdd_xattr_sanity_check(env, mdd_obj);
- if (rc)
- RETURN(rc);
+ if (!strcmp(name, XATTR_NAME_ACL_ACCESS)) {
+ rc = mdd_acl_set(env, mdd_obj, buf, fl);
+ RETURN(rc);
+ }
+
+ rc = mdd_xattr_sanity_check(env, mdd_obj);
+ if (rc)
+ RETURN(rc);
+
+ handle = mdd_trans_create(env, mdd);
+ if (IS_ERR(handle))
+ RETURN(PTR_ERR(handle));
+
+ rc = mdd_declare_xattr_set(env, mdd, mdd_obj, buf, name, 0, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ /* security-replated changes may require sync */
+ if (!strcmp(name, XATTR_NAME_ACL_ACCESS))
+ handle->th_sync |= !!mdd->mdd_sync_permission;
+
+ mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
+
+ if (strncmp(XATTR_NAME_HSM, name, sizeof(XATTR_NAME_HSM) - 1) == 0) {
+ rc = mdd_hsm_update_locked(env, obj, buf, handle);
+ if (rc) {
+ mdd_write_unlock(env, mdd_obj);
+ GOTO(stop, rc);
+ }
+ }
+
+ rc = mdo_xattr_set(env, mdd_obj, buf, name, fl, handle,
+ mdd_object_capa(env, mdd_obj));
+ mdd_write_unlock(env, mdd_obj);
+ if (rc)
+ GOTO(stop, rc);
+
+ /* Only record system & user xattr changes */
+ if (strncmp(XATTR_USER_PREFIX, name,
+ sizeof(XATTR_USER_PREFIX) - 1) == 0 ||
+ strncmp(POSIX_ACL_XATTR_ACCESS, name,
+ sizeof(POSIX_ACL_XATTR_ACCESS) - 1) == 0 ||
+ strncmp(POSIX_ACL_XATTR_DEFAULT, name,
+ sizeof(POSIX_ACL_XATTR_DEFAULT) - 1) == 0)
+ rc = mdd_changelog_data_store(env, mdd, CL_XATTR, 0, mdd_obj,
+ handle);
+
+stop:
+ mdd_trans_stop(env, mdd, rc, handle);
+
+ RETURN(rc);
+}
- mdd_txn_param_build(env, mdd, MDD_TXN_XATTR_SET_OP);
- handle = mdd_trans_start(env, mdd);
- if (IS_ERR(handle))
- RETURN(PTR_ERR(handle));
+static int mdd_declare_xattr_del(const struct lu_env *env,
+ struct mdd_device *mdd,
+ struct mdd_object *obj,
+ const char *name,
+ struct thandle *handle)
+{
+ int rc;
- rc = mdd_xattr_set_txn(env, mdd_obj, buf, name, fl, handle);
+ rc = mdo_declare_xattr_del(env, obj, name, handle);
+ if (rc)
+ return rc;
/* Only record user xattr changes */
- if ((rc == 0) && (mdd->mdd_cl.mc_flags & CLM_ON) &&
- (strncmp("user.", name, 5) == 0))
- rc = mdd_changelog_data_store(env, mdd, CL_XATTR, mdd_obj,
- handle);
- mdd_trans_stop(env, mdd, rc, handle);
+ if ((strncmp("user.", name, 5) == 0))
+ rc = mdd_declare_changelog_store(env, mdd, NULL, handle);
- RETURN(rc);
+ return rc;
}
/**
if (rc)
RETURN(rc);
- mdd_txn_param_build(env, mdd, MDD_TXN_XATTR_SET_OP);
- handle = mdd_trans_start(env, mdd);
+ handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
RETURN(PTR_ERR(handle));
+ rc = mdd_declare_xattr_del(env, mdd, mdd_obj, name, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(stop, rc);
+
mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
rc = mdo_xattr_del(env, mdd_obj, name, handle,
mdd_object_capa(env, mdd_obj));
mdd_write_unlock(env, mdd_obj);
-
- /* Only record user xattr changes */
- if ((rc == 0) && (mdd->mdd_cl.mc_flags & CLM_ON) &&
- (strncmp("user.", name, 5) != 0))
- rc = mdd_changelog_data_store(env, mdd, CL_XATTR, mdd_obj,
+ if (rc)
+ GOTO(stop, rc);
+
+ /* Only record system & user xattr changes */
+ if (strncmp(XATTR_USER_PREFIX, name,
+ sizeof(XATTR_USER_PREFIX) - 1) == 0 ||
+ strncmp(POSIX_ACL_XATTR_ACCESS, name,
+ sizeof(POSIX_ACL_XATTR_ACCESS) - 1) == 0 ||
+ strncmp(POSIX_ACL_XATTR_DEFAULT, name,
+ sizeof(POSIX_ACL_XATTR_DEFAULT) - 1) == 0)
+ rc = mdd_changelog_data_store(env, mdd, CL_XATTR, 0, mdd_obj,
handle);
+stop:
mdd_trans_stop(env, mdd, rc, handle);
RETURN(rc);
}
-/* partial unlink */
-static int mdd_ref_del(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma)
+/*
+ * read lov EA of an object
+ * return the lov EA in an allocated lu_buf
+ */
+static struct lu_buf *mdd_get_lov_ea(const struct lu_env *env,
+ struct mdd_object *obj)
{
- struct lu_attr *la_copy = &mdd_env_info(env)->mti_la_for_fix;
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
- struct mdd_device *mdd = mdo2mdd(obj);
- struct thandle *handle;
-#ifdef HAVE_QUOTA_SUPPORT
- struct obd_device *obd = mdd->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0;
-#endif
- int rc;
- ENTRY;
-
- /*
- * Check -ENOENT early here because we need to get object type
- * to calculate credits before transaction start
- */
- if (!mdd_object_exists(mdd_obj))
- RETURN(-ENOENT);
-
- LASSERT(mdd_object_exists(mdd_obj) > 0);
-
- rc = mdd_log_txn_param_build(env, obj, ma, MDD_TXN_UNLINK_OP);
- if (rc)
- RETURN(rc);
-
- handle = mdd_trans_start(env, mdd);
- if (IS_ERR(handle))
- RETURN(-ENOMEM);
-
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
-
- rc = mdd_unlink_sanity_check(env, NULL, mdd_obj, ma);
- if (rc)
- GOTO(cleanup, rc);
-
- __mdd_ref_del(env, mdd_obj, handle, 0);
-
- if (S_ISDIR(lu_object_attr(&obj->mo_lu))) {
- /* unlink dot */
- __mdd_ref_del(env, mdd_obj, handle, 1);
- }
-
- LASSERT(ma->ma_attr.la_valid & LA_CTIME);
- la_copy->la_ctime = ma->ma_attr.la_ctime;
-
- la_copy->la_valid = LA_CTIME;
- rc = mdd_attr_check_set_internal(env, mdd_obj, la_copy, handle, 0);
- if (rc)
- GOTO(cleanup, rc);
-
- rc = mdd_finish_unlink(env, mdd_obj, ma, handle);
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota && ma->ma_valid & MA_INODE &&
- ma->ma_attr.la_nlink == 0 && mdd_obj->mod_count == 0) {
- quota_opc = FSFILT_OP_UNLINK_PARTIAL_CHILD;
- mdd_quota_wrapper(&ma->ma_attr, qids);
- }
-#endif
-
-
- EXIT;
-cleanup:
- mdd_write_unlock(env, mdd_obj);
- mdd_trans_stop(env, mdd, rc, handle);
-#ifdef HAVE_QUOTA_SUPPORT
- if (quota_opc)
- /* Trigger dqrel on the owner of child. If failed,
- * the next call for lquota_chkquota will process it */
- lquota_adjust(mds_quota_interface_ref, obd, qids, 0, rc,
- quota_opc);
-#endif
- return rc;
+ struct lu_buf *buf = &mdd_env_info(env)->mti_big_buf;
+ struct lu_buf *lmm_buf = NULL;
+ int rc, sz;
+ ENTRY;
+
+repeat:
+ rc = mdo_xattr_get(env, obj, buf, XATTR_NAME_LOV,
+ mdd_object_capa(env, obj));
+ if (rc < 0)
+ GOTO(out, rc);
+
+ if (rc == 0)
+ GOTO(out, rc = -ENODATA);
+
+ sz = rc;
+ if (memcmp(buf, &LU_BUF_NULL, sizeof(*buf)) == 0) {
+ /* mti_big_buf was not allocated, so we have to
+ * allocate it based on the ea size */
+ buf = mdd_buf_alloc(env, sz);
+ if (buf->lb_buf == NULL)
+ GOTO(out, rc = -ENOMEM);
+ goto repeat;
+ }
+
+ OBD_ALLOC_PTR(lmm_buf);
+ if (!lmm_buf)
+ GOTO(out, rc = -ENOMEM);
+
+ OBD_ALLOC(lmm_buf->lb_buf, sz);
+ if (!lmm_buf->lb_buf)
+ GOTO(free, rc = -ENOMEM);
+
+ memcpy(lmm_buf->lb_buf, buf->lb_buf, sz);
+ lmm_buf->lb_len = sz;
+
+ GOTO(out, rc = 0);
+
+free:
+ if (lmm_buf)
+ OBD_FREE_PTR(lmm_buf);
+out:
+ if (rc)
+ return ERR_PTR(rc);
+ return lmm_buf;
}
-/* partial operation */
-static int mdd_oc_sanity_check(const struct lu_env *env,
- struct mdd_object *obj,
- struct md_attr *ma)
-{
- int rc;
- ENTRY;
- switch (ma->ma_attr.la_mode & S_IFMT) {
- case S_IFREG:
- case S_IFDIR:
- case S_IFLNK:
- case S_IFCHR:
- case S_IFBLK:
- case S_IFIFO:
- case S_IFSOCK:
- rc = 0;
- break;
- default:
- rc = -EINVAL;
- break;
- }
- RETURN(rc);
+/*
+ * check if layout swapping between 2 objects is allowed
+ * the rules are:
+ * - same type of objects
+ * - same owner/group (so quotas are still valid)
+ */
+static int mdd_layout_swap_allowed(const struct lu_env *env,
+ struct mdd_object *o1,
+ struct mdd_object *o2)
+{
+ const struct lu_fid *fid1, *fid2;
+ __u32 uid, gid;
+ struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
+ int rc;
+ ENTRY;
+
+ fid1 = mdo2fid(o1);
+ fid2 = mdo2fid(o2);
+
+ if (!fid_is_norm(fid1) || !fid_is_norm(fid2) ||
+ (mdd_object_type(o1) != mdd_object_type(o2)))
+ RETURN(-EPERM);
+
+ tmp_la->la_valid = 0;
+ rc = mdd_la_get(env, o1, tmp_la, BYPASS_CAPA);
+ if (rc)
+ RETURN(rc);
+ uid = tmp_la->la_uid;
+ gid = tmp_la->la_gid;
+
+ tmp_la->la_valid = 0;
+ rc = mdd_la_get(env, o2, tmp_la, BYPASS_CAPA);
+ if (rc)
+ RETURN(rc);
+
+ if ((uid != tmp_la->la_uid) || (gid != tmp_la->la_gid))
+ RETURN(-EPERM);
+
+ RETURN(0);
}
-static int mdd_object_create(const struct lu_env *env,
- struct md_object *obj,
- const struct md_op_spec *spec,
- struct md_attr *ma)
+/**
+ * swap layouts between 2 lustre objects
+ */
+static int mdd_swap_layouts(const struct lu_env *env, struct md_object *obj1,
+ struct md_object *obj2, __u64 flags)
{
+ struct mdd_object *o1, *o2, *fst_o, *snd_o;
+ struct lu_buf *lmm1_buf = NULL, *lmm2_buf = NULL;
+ struct lu_buf *fst_buf, *snd_buf;
+ struct lov_mds_md *fst_lmm, *snd_lmm, *old_fst_lmm = NULL;
+ struct thandle *handle;
+ struct mdd_device *mdd = mdo2mdd(obj1);
+ int rc;
+ __u16 fst_gen, snd_gen;
+ ENTRY;
+
+ /* we have to sort the 2 obj, so locking will always
+ * be in the same order, even in case of 2 concurrent swaps */
+ rc = lu_fid_cmp(mdo2fid(md2mdd_obj(obj1)),
+ mdo2fid(md2mdd_obj(obj2)));
+ /* same fid ? */
+ if (rc == 0)
+ RETURN(-EPERM);
+
+ if (rc > 0) {
+ o1 = md2mdd_obj(obj1);
+ o2 = md2mdd_obj(obj2);
+ } else {
+ o1 = md2mdd_obj(obj2);
+ o2 = md2mdd_obj(obj1);
+ }
+
+ /* check if layout swapping is allowed */
+ rc = mdd_layout_swap_allowed(env, o1, o2);
+ if (rc)
+ RETURN(rc);
+
+ handle = mdd_trans_create(env, mdd);
+ if (IS_ERR(handle))
+ RETURN(PTR_ERR(handle));
+
+ /* objects are already sorted */
+ mdd_write_lock(env, o1, MOR_TGT_CHILD);
+ mdd_write_lock(env, o2, MOR_TGT_CHILD);
+
+ lmm1_buf = mdd_get_lov_ea(env, o1);
+ if (IS_ERR(lmm1_buf)) {
+ rc = PTR_ERR(lmm1_buf);
+ lmm1_buf = NULL;
+ if (rc != -ENODATA)
+ GOTO(unlock, rc);
+ }
+
+ lmm2_buf = mdd_get_lov_ea(env, o2);
+ if (IS_ERR(lmm2_buf)) {
+ rc = PTR_ERR(lmm2_buf);
+ lmm2_buf = NULL;
+ if (rc != -ENODATA)
+ GOTO(unlock, rc);
+ }
+
+ /* swapping 2 non existant layouts is a success */
+ if ((lmm1_buf == NULL) && (lmm2_buf == NULL))
+ GOTO(unlock, rc = 0);
+
+ /* to help inode migration between MDT, it is better to
+ * start by the no layout file (if one), so we order the swap */
+ if (lmm1_buf == NULL) {
+ fst_o = o1;
+ fst_buf = lmm1_buf;
+ snd_o = o2;
+ snd_buf = lmm2_buf;
+ } else {
+ fst_o = o2;
+ fst_buf = lmm2_buf;
+ snd_o = o1;
+ snd_buf = lmm1_buf;
+ }
+
+ /* lmm and generation layout initialization */
+ if (fst_buf) {
+ fst_lmm = fst_buf->lb_buf;
+ fst_gen = le16_to_cpu(fst_lmm->lmm_layout_gen);
+ } else {
+ fst_lmm = NULL;
+ fst_gen = 0;
+ }
+
+ if (snd_buf) {
+ snd_lmm = snd_buf->lb_buf;
+ snd_gen = le16_to_cpu(snd_lmm->lmm_layout_gen);
+ } else {
+ snd_lmm = NULL;
+ snd_gen = 0;
+ }
+
+ /* save the orignal lmm common header of first file
+ * to be able to roll back */
+ OBD_ALLOC_PTR(old_fst_lmm);
+ if (old_fst_lmm == NULL)
+ GOTO(unlock, rc = -ENOMEM);
+
+ memcpy(old_fst_lmm, fst_lmm, sizeof(*old_fst_lmm));
+
+ /* increase the generation layout numbers */
+ snd_gen++;
+ fst_gen++;
+
+ /* set the file specific informations in lmm */
+ if (fst_lmm) {
+ fst_lmm->lmm_layout_gen = cpu_to_le16(snd_gen);
+ fst_lmm->lmm_object_seq = snd_lmm->lmm_object_seq;
+ fst_lmm->lmm_object_id = snd_lmm->lmm_object_id;
+ }
+
+ if (snd_lmm) {
+ snd_lmm->lmm_layout_gen = cpu_to_le16(fst_gen);
+ snd_lmm->lmm_object_seq = old_fst_lmm->lmm_object_seq;
+ snd_lmm->lmm_object_id = old_fst_lmm->lmm_object_id;
+ }
+
+ /* prepare transaction */
+ rc = mdd_declare_xattr_set(env, mdd, fst_o, snd_buf, XATTR_NAME_LOV,
+ LU_XATTR_REPLACE, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_declare_xattr_set(env, mdd, snd_o, fst_buf, XATTR_NAME_LOV,
+ LU_XATTR_REPLACE, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdo_xattr_set(env, fst_o, snd_buf, XATTR_NAME_LOV,
+ LU_XATTR_REPLACE, handle,
+ mdd_object_capa(env, fst_o));
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdo_xattr_set(env, snd_o, fst_buf, XATTR_NAME_LOV,
+ LU_XATTR_REPLACE, handle,
+ mdd_object_capa(env, snd_o));
+ if (rc) {
+ int rc2;
+
+ /* failure on second file, but first was done, so we have
+ * to roll back first */
+ /* restore object_id, object_seq and generation number
+ * on first file */
+ if (fst_lmm) {
+ fst_lmm->lmm_object_id = old_fst_lmm->lmm_object_id;
+ fst_lmm->lmm_object_seq = old_fst_lmm->lmm_object_seq;
+ fst_lmm->lmm_layout_gen = old_fst_lmm->lmm_layout_gen;
+ }
+
+ rc2 = mdo_xattr_set(env, fst_o, fst_buf, XATTR_NAME_LOV,
+ LU_XATTR_REPLACE, handle,
+ mdd_object_capa(env, fst_o));
+ if (rc2) {
+ /* very bad day */
+ CERROR("%s: unable to roll back after swap layouts"
+ " failure between "DFID" and "DFID
+ " rc2 = %d rc = %d)\n",
+ mdd2obd_dev(mdd)->obd_name,
+ PFID(mdo2fid(snd_o)), PFID(mdo2fid(fst_o)),
+ rc2, rc);
+ /* a solution to avoid journal commit is to panic,
+ * but it has strong consequences so we use LBUG to
+ * allow sysdamin to choose to panic or not
+ */
+ LBUG();
+ }
+ GOTO(stop, rc);
+ }
+ EXIT;
+
+stop:
+ mdd_trans_stop(env, mdd, rc, handle);
+unlock:
+ mdd_write_unlock(env, o2);
+ mdd_write_unlock(env, o1);
- struct mdd_device *mdd = mdo2mdd(obj);
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
- const struct lu_fid *pfid = spec->u.sp_pfid;
- struct thandle *handle;
-#ifdef HAVE_QUOTA_SUPPORT
- struct obd_device *obd = mdd->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0, block_count = 0;
- int inode_pending = 0, block_pending = 0;
-#endif
- int rc = 0;
- ENTRY;
-
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota) {
- quota_opc = FSFILT_OP_CREATE_PARTIAL_CHILD;
- mdd_quota_wrapper(&ma->ma_attr, qids);
- /* get file quota for child */
- lquota_chkquota(mds_quota_interface_ref, obd, qids[USRQUOTA],
- qids[GRPQUOTA], 1, &inode_pending, NULL, 0);
- switch (ma->ma_attr.la_mode & S_IFMT) {
- case S_IFLNK:
- case S_IFDIR:
- block_count = 2;
- break;
- case S_IFREG:
- block_count = 1;
- break;
- }
- /* get block quota for child */
- if (block_count)
- lquota_chkquota(mds_quota_interface_ref, obd,
- qids[USRQUOTA], qids[GRPQUOTA],
- block_count, &block_pending, NULL,
- LQUOTA_FLAGS_BLK);
- }
-#endif
-
- mdd_txn_param_build(env, mdd, MDD_TXN_OBJECT_CREATE_OP);
- handle = mdd_trans_start(env, mdd);
- if (IS_ERR(handle))
- GOTO(out_pending, rc = PTR_ERR(handle));
-
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- rc = mdd_oc_sanity_check(env, mdd_obj, ma);
- if (rc)
- GOTO(unlock, rc);
-
- rc = mdd_object_create_internal(env, NULL, mdd_obj, ma, handle, spec);
- if (rc)
- GOTO(unlock, rc);
-
- if (spec->sp_cr_flags & MDS_CREATE_SLAVE_OBJ) {
- /* If creating the slave object, set slave EA here. */
- int lmv_size = spec->u.sp_ea.eadatalen;
- struct lmv_stripe_md *lmv;
+ if (lmm1_buf && lmm1_buf->lb_buf)
+ OBD_FREE(lmm1_buf->lb_buf, lmm1_buf->lb_len);
+ if (lmm1_buf)
+ OBD_FREE_PTR(lmm1_buf);
- lmv = (struct lmv_stripe_md *)spec->u.sp_ea.eadata;
- LASSERT(lmv != NULL && lmv_size > 0);
+ if (lmm2_buf && lmm2_buf->lb_buf)
+ OBD_FREE(lmm2_buf->lb_buf, lmm2_buf->lb_len);
+ if (lmm2_buf)
+ OBD_FREE_PTR(lmm2_buf);
- rc = __mdd_xattr_set(env, mdd_obj,
- mdd_buf_get_const(env, lmv, lmv_size),
- MDS_LMV_MD_NAME, 0, handle);
- if (rc)
- GOTO(unlock, rc);
+ if (old_fst_lmm)
+ OBD_FREE_PTR(old_fst_lmm);
- rc = mdd_attr_set_internal(env, mdd_obj, &ma->ma_attr,
- handle, 0);
- } else {
-#ifdef CONFIG_FS_POSIX_ACL
- if (spec->sp_cr_flags & MDS_CREATE_RMT_ACL) {
- struct lu_buf *buf = &mdd_env_info(env)->mti_buf;
-
- buf->lb_buf = (void *)spec->u.sp_ea.eadata;
- buf->lb_len = spec->u.sp_ea.eadatalen;
- if ((buf->lb_len > 0) && (buf->lb_buf != NULL)) {
- rc = __mdd_acl_init(env, mdd_obj, buf,
- &ma->ma_attr.la_mode,
- handle);
- if (rc)
- GOTO(unlock, rc);
- else
- ma->ma_attr.la_valid |= LA_MODE;
- }
-
- pfid = spec->u.sp_ea.fid;
- }
-#endif
- rc = mdd_object_initialize(env, pfid, NULL, mdd_obj, ma, handle,
- spec);
- }
- EXIT;
-unlock:
- if (rc == 0)
- rc = mdd_attr_get_internal(env, mdd_obj, ma);
- mdd_write_unlock(env, mdd_obj);
-
- mdd_trans_stop(env, mdd, rc, handle);
-out_pending:
-#ifdef HAVE_QUOTA_SUPPORT
- if (quota_opc) {
- if (inode_pending)
- lquota_pending_commit(mds_quota_interface_ref, obd,
- qids[USRQUOTA], qids[GRPQUOTA],
- 1, 0);
- if (block_pending)
- lquota_pending_commit(mds_quota_interface_ref, obd,
- qids[USRQUOTA], qids[GRPQUOTA],
- block_count, 1);
- /* Trigger dqacq on the owner of child. If failed,
- * the next call for lquota_chkquota will process it. */
- lquota_adjust(mds_quota_interface_ref, obd, qids, 0, rc,
- FSFILT_OP_CREATE_PARTIAL_CHILD);
- }
-#endif
- return rc;
+ return rc;
}
-/* partial link */
-static int mdd_ref_add(const struct lu_env *env, struct md_object *obj,
- const struct md_attr *ma)
+void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
+ struct mdd_object *child, struct lu_attr *attr)
{
- struct lu_attr *la_copy = &mdd_env_info(env)->mti_la_for_fix;
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
- struct mdd_device *mdd = mdo2mdd(obj);
- struct thandle *handle;
- int rc;
- ENTRY;
-
- mdd_txn_param_build(env, mdd, MDD_TXN_XATTR_SET_OP);
- handle = mdd_trans_start(env, mdd);
- if (IS_ERR(handle))
- RETURN(-ENOMEM);
-
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- rc = mdd_link_sanity_check(env, NULL, NULL, mdd_obj);
- if (rc == 0)
- __mdd_ref_add(env, mdd_obj, handle);
- mdd_write_unlock(env, mdd_obj);
- if (rc == 0) {
- LASSERT(ma->ma_attr.la_valid & LA_CTIME);
- la_copy->la_ctime = ma->ma_attr.la_ctime;
-
- la_copy->la_valid = LA_CTIME;
- rc = mdd_attr_check_set_internal_locked(env, mdd_obj, la_copy,
- handle, 0);
- }
- mdd_trans_stop(env, mdd, 0, handle);
+ struct dt_allocation_hint *hint = &mdd_env_info(env)->mti_hint;
+ struct dt_object *np = parent ? mdd_object_child(parent) : NULL;
+ struct dt_object *nc = mdd_object_child(child);
- RETURN(rc);
+ /* @hint will be initialized by underlying device. */
+ nc->do_ops->do_ah_init(env, hint, np, nc, attr->la_mode & S_IFMT);
}
/*
*/
int accmode(const struct lu_env *env, struct lu_attr *la, int flags)
{
- int res = 0;
-
- /* Sadly, NFSD reopens a file repeatedly during operation, so the
- * "acc_mode = 0" allowance for newly-created files isn't honoured.
- * NFSD uses the MDS_OPEN_OWNEROVERRIDE flag to say that a file
- * owner can write to a file even if it is marked readonly to hide
- * its brokenness. (bug 5781) */
- if (flags & MDS_OPEN_OWNEROVERRIDE) {
- struct md_ucred *uc = md_ucred(env);
-
- if ((uc == NULL) || (uc->mu_valid == UCRED_INIT) ||
- (la->la_uid == uc->mu_fsuid))
- return 0;
- }
-
- if (flags & FMODE_READ)
- res |= MAY_READ;
- if (flags & (FMODE_WRITE | MDS_OPEN_TRUNC | MDS_OPEN_APPEND))
- res |= MAY_WRITE;
- if (flags & MDS_FMODE_EXEC)
- res |= MAY_EXEC;
- return res;
+ int res = 0;
+
+ /* Sadly, NFSD reopens a file repeatedly during operation, so the
+ * "acc_mode = 0" allowance for newly-created files isn't honoured.
+ * NFSD uses the MDS_OPEN_OWNEROVERRIDE flag to say that a file
+ * owner can write to a file even if it is marked readonly to hide
+ * its brokenness. (bug 5781) */
+ if (flags & MDS_OPEN_OWNEROVERRIDE) {
+ struct lu_ucred *uc = lu_ucred_check(env);
+
+ if ((uc == NULL) || (la->la_uid == uc->uc_fsuid))
+ return 0;
+ }
+
+ if (flags & FMODE_READ)
+ res |= MAY_READ;
+ if (flags & (FMODE_WRITE | MDS_OPEN_TRUNC | MDS_OPEN_APPEND))
+ res |= MAY_WRITE;
+ if (flags & MDS_FMODE_EXEC)
+ res = MAY_EXEC;
+ return res;
}
static int mdd_open_sanity_check(const struct lu_env *env,
* Now, flag -- O_NOATIME does not be packed by client.
*/
if (flag & O_NOATIME) {
- struct md_ucred *uc = md_ucred(env);
+ struct lu_ucred *uc = lu_ucred(env);
- if (uc && ((uc->mu_valid == UCRED_OLD) ||
- (uc->mu_valid == UCRED_NEW)) &&
- (uc->mu_fsuid != tmp_la->la_uid) &&
- !mdd_capable(uc, CFS_CAP_FOWNER))
- RETURN(-EPERM);
+ if (uc && ((uc->uc_valid == UCRED_OLD) ||
+ (uc->uc_valid == UCRED_NEW)) &&
+ (uc->uc_fsuid != tmp_la->la_uid) &&
+ !mdd_capable(uc, CFS_CAP_FOWNER))
+ RETURN(-EPERM);
}
#endif
return rc;
}
+int mdd_declare_object_kill(const struct lu_env *env, struct mdd_object *obj,
+ struct md_attr *ma, struct thandle *handle)
+{
+ return mdo_declare_destroy(env, obj, handle);
+}
+
/* return md_attr back,
* if it is last unlink then return lov ea + llog cookie*/
int mdd_object_kill(const struct lu_env *env, struct mdd_object *obj,
- struct md_attr *ma)
+ struct md_attr *ma, struct thandle *handle)
{
- int rc = 0;
+ int rc;
ENTRY;
- if (S_ISREG(mdd_object_type(obj))) {
- /* Return LOV & COOKIES unconditionally here. We clean evth up.
- * Caller must be ready for that. */
+ rc = mdo_destroy(env, obj, handle);
- rc = __mdd_lmm_get(env, obj, ma);
- if ((ma->ma_valid & MA_LOV))
- rc = mdd_unlink_log(env, mdo2mdd(&obj->mod_obj),
- obj, ma);
- }
RETURN(rc);
}
+static int mdd_declare_close(const struct lu_env *env,
+ struct mdd_object *obj,
+ struct md_attr *ma,
+ struct thandle *handle)
+{
+ int rc;
+
+ rc = orph_declare_index_delete(env, obj, handle);
+ if (rc)
+ return rc;
+
+ return mdo_declare_destroy(env, obj, handle);
+}
+
/*
* No permission check is needed.
*/
static int mdd_close(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma)
+ struct md_attr *ma, int mode)
{
struct mdd_object *mdd_obj = md2mdd_obj(obj);
- struct thandle *handle;
- int rc;
- int reset = 1;
-
-#ifdef HAVE_QUOTA_SUPPORT
- struct obd_device *obd = mdo2mdd(obj)->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0;
-#endif
+ struct mdd_device *mdd = mdo2mdd(obj);
+ struct thandle *handle = NULL;
+ int rc, is_orphan = 0;
ENTRY;
- rc = mdd_log_txn_param_build(env, obj, ma, MDD_TXN_UNLINK_OP);
- if (rc)
- RETURN(rc);
- handle = mdd_trans_start(env, mdo2mdd(obj));
- if (IS_ERR(handle))
- RETURN(PTR_ERR(handle));
+ if (ma->ma_valid & MA_FLAGS && ma->ma_attr_flags & MDS_KEEP_ORPHAN) {
+ mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
+ mdd_obj->mod_count--;
+ mdd_write_unlock(env, mdd_obj);
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- /* release open count */
- mdd_obj->mod_count --;
-
- if (mdd_obj->mod_count == 0) {
- /* remove link to object from orphan index */
- if (mdd_obj->mod_flags & ORPHAN_OBJ)
- __mdd_orphan_del(env, mdd_obj, handle);
+ if (mdd_obj->mod_flags & ORPHAN_OBJ && !mdd_obj->mod_count)
+ CDEBUG(D_HA, "Object "DFID" is retained in orphan "
+ "list\n", PFID(mdd_object_fid(mdd_obj)));
+ RETURN(0);
}
- rc = mdd_iattr_get(env, mdd_obj, ma);
- if (rc == 0) {
- if (mdd_obj->mod_count == 0 && ma->ma_attr.la_nlink == 0) {
- rc = mdd_object_kill(env, mdd_obj, ma);
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota) {
- quota_opc = FSFILT_OP_UNLINK_PARTIAL_CHILD;
- mdd_quota_wrapper(&ma->ma_attr, qids);
- }
-#endif
- if (rc == 0)
- reset = 0;
- }
+ /* mdd_finish_unlink() will always set orphan object as DEAD_OBJ, but
+ * it might fail to add the object to orphan list (w/o ORPHAN_OBJ). */
+ /* check without any lock */
+ is_orphan = mdd_obj->mod_count == 1 &&
+ (mdd_obj->mod_flags & (ORPHAN_OBJ | DEAD_OBJ)) != 0;
+
+again:
+ if (is_orphan) {
+ handle = mdd_trans_create(env, mdo2mdd(obj));
+ if (IS_ERR(handle))
+ RETURN(PTR_ERR(handle));
+
+ rc = mdd_declare_close(env, mdd_obj, ma, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_declare_changelog_store(env, mdd, NULL, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdo2mdd(obj), handle);
+ if (rc)
+ GOTO(stop, rc);
}
- if (reset)
- ma->ma_valid &= ~(MA_LOV | MA_COOKIE);
+ mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
+ rc = mdd_la_get(env, mdd_obj, &ma->ma_attr,
+ mdd_object_capa(env, mdd_obj));
+ if (rc != 0) {
+ CERROR("Failed to get lu_attr of "DFID": %d\n",
+ PFID(mdd_object_fid(mdd_obj)), rc);
+ GOTO(out, rc);
+ }
+
+ /* check again with lock */
+ is_orphan = (mdd_obj->mod_count == 1) &&
+ ((mdd_obj->mod_flags & (ORPHAN_OBJ | DEAD_OBJ)) != 0 ||
+ ma->ma_attr.la_nlink == 0);
+
+ if (is_orphan && handle == NULL) {
+ mdd_write_unlock(env, mdd_obj);
+ goto again;
+ }
+
+ mdd_obj->mod_count--; /*release open count */
+
+ if (!is_orphan)
+ GOTO(out, rc = 0);
+
+ /* Orphan object */
+ /* NB: Object maybe not in orphan list originally, it is rare case for
+ * mdd_finish_unlink() failure, in that case, the object doesn't have
+ * ORPHAN_OBJ flag */
+ if ((mdd_obj->mod_flags & ORPHAN_OBJ) != 0) {
+ /* remove link to object from orphan index */
+ LASSERT(handle != NULL);
+ rc = __mdd_orphan_del(env, mdd_obj, handle);
+ if (rc != 0) {
+ CERROR("%s: unable to delete "DFID" from orphan list: "
+ "rc = %d\n", lu_dev_name(mdd2lu_dev(mdd)),
+ PFID(mdd_object_fid(mdd_obj)), rc);
+ /* If object was not deleted from orphan list, do not
+ * destroy OSS objects, which will be done when next
+ * recovery. */
+ GOTO(out, rc);
+ }
+
+ CDEBUG(D_HA, "Object "DFID" is deleted from orphan "
+ "list, OSS objects to be destroyed.\n",
+ PFID(mdd_object_fid(mdd_obj)));
+ }
+
+ rc = mdo_destroy(env, mdd_obj, handle);
+
+ if (rc != 0) {
+ CERROR("%s: unable to delete "DFID" from orphan list: "
+ "rc = %d\n", lu_dev_name(mdd2lu_dev(mdd)),
+ PFID(mdd_object_fid(mdd_obj)), rc);
+ }
+ EXIT;
+out:
mdd_write_unlock(env, mdd_obj);
- mdd_trans_stop(env, mdo2mdd(obj), rc, handle);
-#ifdef HAVE_QUOTA_SUPPORT
- if (quota_opc)
- /* Trigger dqrel on the owner of child. If failed,
- * the next call for lquota_chkquota will process it */
- lquota_adjust(mds_quota_interface_ref, obd, qids, 0, rc,
- quota_opc);
-#endif
- RETURN(rc);
+
+ if (rc == 0 &&
+ (mode & (FMODE_WRITE | MDS_OPEN_APPEND | MDS_OPEN_TRUNC)) &&
+ !(ma->ma_valid & MA_FLAGS && ma->ma_attr_flags & MDS_RECOV_OPEN)) {
+ if (handle == NULL) {
+ handle = mdd_trans_create(env, mdo2mdd(obj));
+ if (IS_ERR(handle))
+ GOTO(stop, rc = IS_ERR(handle));
+
+ rc = mdd_declare_changelog_store(env, mdd, NULL,
+ handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdo2mdd(obj), handle);
+ if (rc)
+ GOTO(stop, rc);
+ }
+
+ mdd_changelog_data_store(env, mdd, CL_CLOSE, mode,
+ mdd_obj, handle);
+ }
+
+stop:
+ if (handle != NULL)
+ mdd_trans_stop(env, mdd, rc, handle);
+ return rc;
}
/*
RETURN(rc);
}
-static int mdd_dir_page_build(const struct lu_env *env, int first,
- void *area, int nob, const struct dt_it_ops *iops,
- struct dt_it *it, __u64 *start, __u64 *end,
- struct lu_dirent **last)
+static int mdd_dir_page_build(const struct lu_env *env, union lu_page *lp,
+ int nob, const struct dt_it_ops *iops,
+ struct dt_it *it, __u32 attr, void *arg)
{
- struct lu_fid *fid = &mdd_env_info(env)->mti_fid2;
- struct mdd_thread_info *info = mdd_env_info(env);
- struct lu_fid_pack *pack = &info->mti_pack;
- int result;
- struct lu_dirent *ent;
-
- if (first) {
- memset(area, 0, sizeof (struct lu_dirpage));
- area += sizeof (struct lu_dirpage);
- nob -= sizeof (struct lu_dirpage);
- }
-
- LASSERT(nob > sizeof *ent);
+ struct lu_dirpage *dp = &lp->lp_dir;
+ void *area = dp;
+ int result;
+ __u64 hash = 0;
+ struct lu_dirent *ent;
+ struct lu_dirent *last = NULL;
+ int first = 1;
+
+ memset(area, 0, sizeof (*dp));
+ area += sizeof (*dp);
+ nob -= sizeof (*dp);
ent = area;
- result = 0;
do {
- char *name;
int len;
int recsize;
- __u64 hash;
- name = (char *)iops->key(env, it);
- len = iops->key_size(env, it);
+ len = iops->key_size(env, it);
- pack = (struct lu_fid_pack *)iops->rec(env, it);
- result = fid_unpack(pack, fid);
- if (result != 0)
- break;
+ /* IAM iterator can return record with zero len. */
+ if (len == 0)
+ goto next;
- recsize = (sizeof(*ent) + len + 7) & ~7;
hash = iops->store(env, it);
- *end = hash;
+ if (unlikely(first)) {
+ first = 0;
+ dp->ldp_hash_start = cpu_to_le64(hash);
+ }
- CDEBUG(D_INFO, "%p %p %d "DFID": "LPU64" (%d) \"%*.*s\"\n",
- name, ent, nob, PFID(fid), hash, len, len, len, name);
+ /* calculate max space required for lu_dirent */
+ recsize = lu_dirent_calc_size(len, attr);
if (nob >= recsize) {
- ent->lde_fid = *fid;
- fid_cpu_to_le(&ent->lde_fid, &ent->lde_fid);
- ent->lde_hash = hash;
- ent->lde_namelen = cpu_to_le16(len);
- ent->lde_reclen = cpu_to_le16(recsize);
- memcpy(ent->lde_name, name, len);
- if (first && ent == area)
- *start = hash;
- *last = ent;
- ent = (void *)ent + recsize;
- nob -= recsize;
- result = iops->next(env, it);
+ result = iops->rec(env, it, (struct dt_rec *)ent, attr);
+ if (result == -ESTALE)
+ goto next;
+ if (result != 0)
+ goto out;
+
+ /* osd might not able to pack all attributes,
+ * so recheck rec length */
+ recsize = le16_to_cpu(ent->lde_reclen);
} else {
- /*
- * record doesn't fit into page, enlarge previous one.
- */
- LASSERT(*last != NULL);
- (*last)->lde_reclen =
- cpu_to_le16(le16_to_cpu((*last)->lde_reclen) +
- nob);
- break;
+ result = (last != NULL) ? 0 :-EINVAL;
+ goto out;
}
+ last = ent;
+ ent = (void *)ent + recsize;
+ nob -= recsize;
+
+next:
+ result = iops->next(env, it);
+ if (result == -ESTALE)
+ goto next;
} while (result == 0);
- return result;
-}
-
-static int __mdd_readpage(const struct lu_env *env, struct mdd_object *obj,
- const struct lu_rdpg *rdpg)
-{
- struct dt_it *it;
- struct dt_object *next = mdd_object_child(obj);
- const struct dt_it_ops *iops;
- struct page *pg;
- struct lu_dirent *last = NULL;
- int i;
- int rc;
- int nob;
- __u64 hash_start;
- __u64 hash_end = 0;
-
- LASSERT(rdpg->rp_pages != NULL);
- LASSERT(next->do_index_ops != NULL);
-
- if (rdpg->rp_count <= 0)
- return -EFAULT;
-
- /*
- * iterate through directory and fill pages from @rdpg
- */
- iops = &next->do_index_ops->dio_it;
- it = iops->init(env, next, mdd_object_capa(env, obj));
- if (IS_ERR(it))
- return PTR_ERR(it);
-
- rc = iops->load(env, it, rdpg->rp_hash);
-
- if (rc == 0)
- /*
- * Iterator didn't find record with exactly the key requested.
- *
- * It is currently either
- *
- * - positioned above record with key less than
- * requested---skip it.
- *
- * - or not positioned at all (is in IAM_IT_SKEWED
- * state)---position it on the next item.
- */
- rc = iops->next(env, it);
- else if (rc > 0)
- rc = 0;
-
- /*
- * At this point and across for-loop:
- *
- * rc == 0 -> ok, proceed.
- * rc > 0 -> end of directory.
- * rc < 0 -> error.
- */
- for (i = 0, nob = rdpg->rp_count; rc == 0 && nob > 0;
- i++, nob -= CFS_PAGE_SIZE) {
- LASSERT(i < rdpg->rp_npages);
- pg = rdpg->rp_pages[i];
- rc = mdd_dir_page_build(env, !i, cfs_kmap(pg),
- min_t(int, nob, CFS_PAGE_SIZE), iops,
- it, &hash_start, &hash_end, &last);
- if (rc != 0 || i == rdpg->rp_npages - 1)
- last->lde_reclen = 0;
- cfs_kunmap(pg);
- }
- if (rc > 0) {
- /*
- * end of directory.
- */
- hash_end = DIR_END_OFF;
- rc = 0;
- }
- if (rc == 0) {
- struct lu_dirpage *dp;
-
- dp = cfs_kmap(rdpg->rp_pages[0]);
- dp->ldp_hash_start = rdpg->rp_hash;
- dp->ldp_hash_end = hash_end;
- if (i == 0)
- /*
- * No pages were processed, mark this.
- */
- dp->ldp_flags |= LDF_EMPTY;
- dp->ldp_flags = cpu_to_le32(dp->ldp_flags);
- cfs_kunmap(rdpg->rp_pages[0]);
+out:
+ dp->ldp_hash_end = cpu_to_le64(hash);
+ if (last != NULL) {
+ if (last->lde_hash == dp->ldp_hash_end)
+ dp->ldp_flags |= cpu_to_le32(LDF_COLLIDE);
+ last->lde_reclen = 0; /* end mark */
}
- iops->put(env, it);
- iops->fini(env, it);
-
- return rc;
+ if (result > 0)
+ /* end of directory */
+ dp->ldp_hash_end = cpu_to_le64(MDS_DIR_END_OFF);
+ else if (result < 0)
+ CWARN("build page failed: %d!\n", result);
+ return result;
}
-static int mdd_readpage(const struct lu_env *env, struct md_object *obj,
- const struct lu_rdpg *rdpg)
+int mdd_readpage(const struct lu_env *env, struct md_object *obj,
+ const struct lu_rdpg *rdpg)
{
struct mdd_object *mdd_obj = md2mdd_obj(obj);
int rc;
ENTRY;
- LASSERT(mdd_object_exists(mdd_obj));
+ if (mdd_object_exists(mdd_obj) == 0) {
+ CERROR("%s: object "DFID" not found: rc = -2\n",
+ mdd_obj_dev_name(mdd_obj),PFID(mdd_object_fid(mdd_obj)));
+ return -ENOENT;
+ }
mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
rc = mdd_readpage_sanity_check(env, mdd_obj);
struct page *pg;
struct lu_dirpage *dp;
- /*
- * According to POSIX, please do not return any entry to client:
- * even dot and dotdot should not be returned.
- */
- CWARN("readdir from dead object: "DFID"\n",
- PFID(mdd_object_fid(mdd_obj)));
+ /*
+ * According to POSIX, please do not return any entry to client:
+ * even dot and dotdot should not be returned.
+ */
+ CDEBUG(D_INODE, "readdir from dead object: "DFID"\n",
+ PFID(mdd_object_fid(mdd_obj)));
if (rdpg->rp_count <= 0)
GOTO(out_unlock, rc = -EFAULT);
pg = rdpg->rp_pages[0];
dp = (struct lu_dirpage*)cfs_kmap(pg);
memset(dp, 0 , sizeof(struct lu_dirpage));
- dp->ldp_hash_start = rdpg->rp_hash;
- dp->ldp_hash_end = DIR_END_OFF;
- dp->ldp_flags |= LDF_EMPTY;
- dp->ldp_flags = cpu_to_le32(dp->ldp_flags);
+ dp->ldp_hash_start = cpu_to_le64(rdpg->rp_hash);
+ dp->ldp_hash_end = cpu_to_le64(MDS_DIR_END_OFF);
+ dp->ldp_flags = cpu_to_le32(LDF_EMPTY);
cfs_kunmap(pg);
- GOTO(out_unlock, rc = 0);
+ GOTO(out_unlock, rc = LU_PAGE_SIZE);
}
- rc = __mdd_readpage(env, mdd_obj, rdpg);
-
- EXIT;
+ rc = dt_index_walk(env, mdd_object_child(mdd_obj), rdpg,
+ mdd_dir_page_build, NULL);
+ if (rc >= 0) {
+ struct lu_dirpage *dp;
+
+ dp = cfs_kmap(rdpg->rp_pages[0]);
+ dp->ldp_hash_start = cpu_to_le64(rdpg->rp_hash);
+ if (rc == 0) {
+ /*
+ * No pages were processed, mark this for first page
+ * and send back.
+ */
+ dp->ldp_flags = cpu_to_le32(LDF_EMPTY);
+ rc = min_t(unsigned int, LU_PAGE_SIZE, rdpg->rp_count);
+ }
+ cfs_kunmap(rdpg->rp_pages[0]);
+ }
+
+ GOTO(out_unlock, rc);
out_unlock:
mdd_read_unlock(env, mdd_obj);
return rc;
static int mdd_object_sync(const struct lu_env *env, struct md_object *obj)
{
struct mdd_object *mdd_obj = md2mdd_obj(obj);
- struct dt_object *next;
- LASSERT(mdd_object_exists(mdd_obj));
- next = mdd_object_child(mdd_obj);
- return next->do_ops->do_object_sync(env, next);
+ if (mdd_object_exists(mdd_obj) == 0) {
+ CERROR("%s: object "DFID" not found: rc = -2\n",
+ mdd_obj_dev_name(mdd_obj),PFID(mdd_object_fid(mdd_obj)));
+ return -ENOENT;
+ }
+ return dt_object_sync(env, mdd_object_child(mdd_obj));
}
const struct md_object_operations mdd_obj_ops = {
- .moo_permission = mdd_permission,
- .moo_attr_get = mdd_attr_get,
- .moo_attr_set = mdd_attr_set,
- .moo_xattr_get = mdd_xattr_get,
- .moo_xattr_set = mdd_xattr_set,
- .moo_xattr_list = mdd_xattr_list,
- .moo_xattr_del = mdd_xattr_del,
- .moo_object_create = mdd_object_create,
- .moo_ref_add = mdd_ref_add,
- .moo_ref_del = mdd_ref_del,
- .moo_open = mdd_open,
- .moo_close = mdd_close,
- .moo_readpage = mdd_readpage,
- .moo_readlink = mdd_readlink,
- .moo_capa_get = mdd_capa_get,
- .moo_object_sync = mdd_object_sync,
- .moo_path = mdd_path,
+ .moo_permission = mdd_permission,
+ .moo_attr_get = mdd_attr_get,
+ .moo_attr_set = mdd_attr_set,
+ .moo_xattr_get = mdd_xattr_get,
+ .moo_xattr_set = mdd_xattr_set,
+ .moo_xattr_list = mdd_xattr_list,
+ .moo_xattr_del = mdd_xattr_del,
+ .moo_swap_layouts = mdd_swap_layouts,
+ .moo_open = mdd_open,
+ .moo_close = mdd_close,
+ .moo_readpage = mdd_readpage,
+ .moo_readlink = mdd_readlink,
+ .moo_changelog = mdd_changelog,
+ .moo_capa_get = mdd_capa_get,
+ .moo_object_sync = mdd_object_sync,
+ .moo_path = mdd_path,
};