* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2016, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#ifdef HAVE_UIDGID_HEADER
# include <linux/uidgid.h>
#endif
-#include <lustre/ll_fiemap.h>
-#include <uapi/linux/lustre_ioctl.h>
+#include <uapi/linux/lustre/lustre_ioctl.h>
#include <lustre_swab.h>
#include "cl_object.h"
#include "llite_internal.h"
#include "vvp_internal.h"
+struct split_param {
+ struct inode *sp_inode;
+ __u16 sp_mirror_id;
+};
+
static int
ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg);
static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
bool *lease_broken);
-static enum llioc_iter
-ll_iocontrol_call(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg, int *rcp);
-
static struct ll_file_data *ll_file_data_get(void)
{
struct ll_file_data *fd;
op_data->op_attr.ia_mtime = inode->i_mtime;
op_data->op_attr.ia_ctime = inode->i_ctime;
op_data->op_attr.ia_size = i_size_read(inode);
- op_data->op_attr.ia_valid |= ATTR_MODE | ATTR_ATIME | ATTR_ATIME_SET |
- ATTR_MTIME | ATTR_MTIME_SET |
- ATTR_CTIME | ATTR_CTIME_SET;
+ op_data->op_attr.ia_valid |= (ATTR_MODE | ATTR_ATIME | ATTR_ATIME_SET |
+ ATTR_MTIME | ATTR_MTIME_SET |
+ ATTR_CTIME);
+ op_data->op_xvalid |= OP_XVALID_CTIME_SET;
op_data->op_attr_blocks = inode->i_blocks;
op_data->op_attr_flags = ll_inode_to_ext_flags(inode->i_flags);
- op_data->op_handle = och->och_fh;
+ if (ll_file_test_flag(ll_i2info(inode), LLIF_PROJECT_INHERIT))
+ op_data->op_attr_flags |= LUSTRE_PROJINHERIT_FL;
+ op_data->op_open_handle = och->och_open_handle;
if (och->och_flags & FMODE_WRITE &&
ll_file_test_and_clear_flag(ll_i2info(inode), LLIF_DATA_MODIFIED))
ll_prepare_close(inode, op_data, och);
switch (bias) {
- case MDS_CLOSE_LAYOUT_SWAP:
+ case MDS_CLOSE_LAYOUT_MERGE:
+ /* merge blocks from the victim inode */
+ op_data->op_attr_blocks += ((struct inode *)data)->i_blocks;
+ op_data->op_attr.ia_valid |= ATTR_SIZE;
+ op_data->op_xvalid |= OP_XVALID_BLOCKS;
+ case MDS_CLOSE_LAYOUT_SPLIT:
+ case MDS_CLOSE_LAYOUT_SWAP: {
+ struct split_param *sp = data;
+
LASSERT(data != NULL);
- op_data->op_bias |= MDS_CLOSE_LAYOUT_SWAP;
+ op_data->op_bias |= bias;
op_data->op_data_version = 0;
op_data->op_lease_handle = och->och_lease_handle;
- op_data->op_fid2 = *ll_inode2fid(data);
+ if (bias == MDS_CLOSE_LAYOUT_SPLIT) {
+ op_data->op_fid2 = *ll_inode2fid(sp->sp_inode);
+ op_data->op_mirror_id = sp->sp_mirror_id;
+ } else {
+ op_data->op_fid2 = *ll_inode2fid(data);
+ }
+ break;
+ }
+
+ case MDS_CLOSE_RESYNC_DONE: {
+ struct ll_ioc_lease *ioc = data;
+
+ LASSERT(data != NULL);
+ op_data->op_attr_blocks +=
+ ioc->lil_count * op_data->op_attr_blocks;
+ op_data->op_attr.ia_valid |= ATTR_SIZE;
+ op_data->op_xvalid |= OP_XVALID_BLOCKS;
+ op_data->op_bias |= MDS_CLOSE_RESYNC_DONE;
+
+ op_data->op_lease_handle = och->och_lease_handle;
+ op_data->op_data = &ioc->lil_ids[0];
+ op_data->op_data_size =
+ ioc->lil_count * sizeof(ioc->lil_ids[0]);
break;
+ }
case MDS_HSM_RELEASE:
LASSERT(data != NULL);
op_data->op_bias |= MDS_HSM_RELEASE;
op_data->op_data_version = *(__u64 *)data;
op_data->op_lease_handle = och->och_lease_handle;
- op_data->op_attr.ia_valid |= ATTR_SIZE | ATTR_BLOCKS;
+ op_data->op_attr.ia_valid |= ATTR_SIZE;
+ op_data->op_xvalid |= OP_XVALID_BLOCKS;
break;
default:
break;
}
+ if (!(op_data->op_attr.ia_valid & ATTR_SIZE))
+ op_data->op_xvalid |= OP_XVALID_LAZYSIZE;
+ if (!(op_data->op_xvalid & OP_XVALID_BLOCKS))
+ op_data->op_xvalid |= OP_XVALID_LAZYBLOCKS;
+
rc = md_close(md_exp, op_data, och->och_mod, &req);
if (rc != 0 && rc != -EINTR)
CERROR("%s: inode "DFID" mdc close failed: rc = %d\n",
md_exp->exp_obd->obd_name, PFID(&lli->lli_fid), rc);
- if (rc == 0 &&
- op_data->op_bias & (MDS_HSM_RELEASE | MDS_CLOSE_LAYOUT_SWAP)) {
+ if (rc == 0 && op_data->op_bias & bias) {
struct mdt_body *body;
body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
out:
md_clear_open_replay_data(md_exp, och);
- och->och_fh.cookie = DEAD_HANDLE_MAGIC;
+ och->och_open_handle.cookie = DEAD_HANDLE_MAGIC;
OBD_FREE_PTR(och);
ptlrpc_req_finished(req); /* This is close request */
RETURN(rc);
}
+static inline int ll_dom_readpage(void *data, struct page *page)
+{
+ struct niobuf_local *lnb = data;
+ void *kaddr;
+
+ kaddr = ll_kmap_atomic(page, KM_USER0);
+ memcpy(kaddr, lnb->lnb_data, lnb->lnb_len);
+ if (lnb->lnb_len < PAGE_SIZE)
+ memset(kaddr + lnb->lnb_len, 0,
+ PAGE_SIZE - lnb->lnb_len);
+ flush_dcache_page(page);
+ SetPageUptodate(page);
+ ll_kunmap_atomic(kaddr, KM_USER0);
+ unlock_page(page);
+
+ return 0;
+}
+
+void ll_dom_finish_open(struct inode *inode, struct ptlrpc_request *req,
+ struct lookup_intent *it)
+{
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct cl_object *obj = lli->lli_clob;
+ struct address_space *mapping = inode->i_mapping;
+ struct page *vmpage;
+ struct niobuf_remote *rnb;
+ char *data;
+ struct lustre_handle lockh;
+ struct ldlm_lock *lock;
+ unsigned long index, start;
+ struct niobuf_local lnb;
+ bool dom_lock = false;
+
+ ENTRY;
+
+ if (obj == NULL)
+ RETURN_EXIT;
+
+ if (it->it_lock_mode != 0) {
+ lockh.cookie = it->it_lock_handle;
+ lock = ldlm_handle2lock(&lockh);
+ if (lock != NULL)
+ dom_lock = ldlm_has_dom(lock);
+ LDLM_LOCK_PUT(lock);
+ }
+ if (!dom_lock)
+ RETURN_EXIT;
+
+ if (!req_capsule_has_field(&req->rq_pill, &RMF_NIOBUF_INLINE,
+ RCL_SERVER))
+ RETURN_EXIT;
+
+ rnb = req_capsule_server_get(&req->rq_pill, &RMF_NIOBUF_INLINE);
+ if (rnb == NULL || rnb->rnb_len == 0)
+ RETURN_EXIT;
+
+ /* LU-11595: Server may return whole file and that is OK always or
+ * it may return just file tail and its offset must be aligned with
+ * client PAGE_SIZE to be used on that client, if server's PAGE_SIZE is
+ * smaller then offset may be not aligned and that data is just ignored.
+ */
+ if (rnb->rnb_offset % PAGE_SIZE)
+ RETURN_EXIT;
+
+ /* Server returns whole file or just file tail if it fills in
+ * reply buffer, in both cases total size should be inode size.
+ */
+ if (rnb->rnb_offset + rnb->rnb_len < i_size_read(inode)) {
+ CERROR("%s: server returns off/len %llu/%u < i_size %llu\n",
+ ll_get_fsname(inode->i_sb, NULL, 0), rnb->rnb_offset,
+ rnb->rnb_len, i_size_read(inode));
+ RETURN_EXIT;
+ }
+
+ CDEBUG(D_INFO, "Get data along with open at %llu len %i, i_size %llu\n",
+ rnb->rnb_offset, rnb->rnb_len, i_size_read(inode));
+
+ data = (char *)rnb + sizeof(*rnb);
+
+ lnb.lnb_file_offset = rnb->rnb_offset;
+ start = lnb.lnb_file_offset / PAGE_SIZE;
+ index = 0;
+ LASSERT(lnb.lnb_file_offset % PAGE_SIZE == 0);
+ lnb.lnb_page_offset = 0;
+ do {
+ lnb.lnb_data = data + (index << PAGE_SHIFT);
+ lnb.lnb_len = rnb->rnb_len - (index << PAGE_SHIFT);
+ if (lnb.lnb_len > PAGE_SIZE)
+ lnb.lnb_len = PAGE_SIZE;
+
+ vmpage = read_cache_page(mapping, index + start,
+ ll_dom_readpage, &lnb);
+ if (IS_ERR(vmpage)) {
+ CWARN("%s: cannot fill page %lu for "DFID
+ " with data: rc = %li\n",
+ ll_get_fsname(inode->i_sb, NULL, 0),
+ index + start, PFID(lu_object_fid(&obj->co_lu)),
+ PTR_ERR(vmpage));
+ break;
+ }
+ put_page(vmpage);
+ index++;
+ } while (rnb->rnb_len > (index << PAGE_SHIFT));
+ EXIT;
+}
+
static int ll_intent_file_open(struct dentry *de, void *lmm, int lmmsize,
struct lookup_intent *itp)
{
}
rc = ll_prep_inode(&de->d_inode, req, NULL, itp);
- if (!rc && itp->it_lock_mode)
+
+ if (!rc && itp->it_lock_mode) {
+ ll_dom_finish_open(de->d_inode, req, itp);
ll_set_lock_data(sbi->ll_md_exp, de->d_inode, itp, NULL);
+ }
out:
ptlrpc_req_finished(req);
struct mdt_body *body;
body = req_capsule_server_get(&it->it_request->rq_pill, &RMF_MDT_BODY);
- och->och_fh = body->mbo_handle;
+ och->och_open_handle = body->mbo_open_handle;
och->och_fid = body->mbo_fid1;
och->och_lease_handle.cookie = it->it_lock_handle;
och->och_magic = OBD_CLIENT_HANDLE_MAGIC;
fd = ll_file_data_get();
if (fd == NULL)
- GOTO(out_openerr, rc = -ENOMEM);
+ GOTO(out_nofiledata, rc = -ENOMEM);
fd->fd_file = file;
if (S_ISDIR(inode->i_mode))
if (file->f_flags & O_TRUNC)
oit.it_flags |= FMODE_WRITE;
- /* kernel only call f_op->open in dentry_open. filp_open calls
- * dentry_open after call to open_namei that checks permissions.
- * Only nfsd_open call dentry_open directly without checking
- * permissions and because of that this code below is safe. */
- if (oit.it_flags & (FMODE_WRITE | FMODE_READ))
- oit.it_flags |= MDS_OPEN_OWNEROVERRIDE;
+ /* kernel only call f_op->open in dentry_open. filp_open calls
+ * dentry_open after call to open_namei that checks permissions.
+ * Only nfsd_open call dentry_open directly without checking
+ * permissions and because of that this code below is safe.
+ */
+ if (oit.it_flags & (FMODE_WRITE | FMODE_READ))
+ oit.it_flags |= MDS_OPEN_OWNEROVERRIDE;
/* We do not want O_EXCL here, presumably we opened the file
* already? XXX - NFS implications? */
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_OPEN, 1);
}
+out_nofiledata:
if (it && it_disposition(it, DISP_ENQ_OPEN_REF)) {
ptlrpc_req_finished(it->it_request);
it_clear_disposition(it, DISP_ENQ_OPEN_REF);
* if it has an open lock in cache already.
*/
static int ll_lease_och_acquire(struct inode *inode, struct file *file,
- struct lustre_handle *old_handle)
+ struct lustre_handle *old_open_handle)
{
struct ll_inode_info *lli = ll_i2info(inode);
struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
*och_p = NULL;
}
- *old_handle = fd->fd_och->och_fh;
+ *old_open_handle = fd->fd_och->och_open_handle;
EXIT;
out_unlock:
struct ll_sb_info *sbi = ll_i2sbi(inode);
struct md_op_data *op_data;
struct ptlrpc_request *req = NULL;
- struct lustre_handle old_handle = { 0 };
+ struct lustre_handle old_open_handle = { 0 };
struct obd_client_handle *och = NULL;
int rc;
int rc2;
if (!(fmode & file->f_mode) || (file->f_mode & FMODE_EXEC))
RETURN(ERR_PTR(-EPERM));
- rc = ll_lease_och_acquire(inode, file, &old_handle);
+ rc = ll_lease_och_acquire(inode, file, &old_open_handle);
if (rc)
RETURN(ERR_PTR(rc));
}
GOTO(out, rc = PTR_ERR(op_data));
/* To tell the MDT this openhandle is from the same owner */
- op_data->op_handle = old_handle;
+ op_data->op_open_handle = old_open_handle;
it.it_flags = fmode | open_flags;
it.it_flags |= MDS_OPEN_LOCK | MDS_OPEN_BY_FID | MDS_OPEN_LEASE;
if (rc == 0)
GOTO(out_free_och, rc = -EINVAL);
- /* Close the file and swap layouts between inode & inode2.
+ /* Close the file and {swap,merge} layouts between inode & inode2.
* NB: lease lock handle is released in mdc_close_layout_swap_pack()
* because we still need it to pack l_remote_handle to MDT. */
rc = ll_close_inode_openhandle(inode, och, MDS_CLOSE_LAYOUT_SWAP,
* Release lease and close the file.
* It will check if the lease has ever broken.
*/
-static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
- bool *lease_broken)
+static int ll_lease_close_intent(struct obd_client_handle *och,
+ struct inode *inode,
+ bool *lease_broken, enum mds_op_bias bias,
+ void *data)
{
struct ldlm_lock *lock;
bool cancelled = true;
LDLM_LOCK_PUT(lock);
}
- CDEBUG(D_INODE, "lease for "DFID" broken? %d\n",
- PFID(&ll_i2info(inode)->lli_fid), cancelled);
-
- if (!cancelled)
- ldlm_cli_cancel(&och->och_lease_handle, 0);
+ CDEBUG(D_INODE, "lease for "DFID" broken? %d, bias: %x\n",
+ PFID(&ll_i2info(inode)->lli_fid), cancelled, bias);
if (lease_broken != NULL)
*lease_broken = cancelled;
- rc = ll_close_inode_openhandle(inode, och, 0, NULL);
+ if (!cancelled && !bias)
+ ldlm_cli_cancel(&och->och_lease_handle, 0);
+
+ if (cancelled) { /* no need to excute intent */
+ bias = 0;
+ data = NULL;
+ }
+
+ rc = ll_close_inode_openhandle(inode, och, bias, data);
RETURN(rc);
}
+static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
+ bool *lease_broken)
+{
+ return ll_lease_close_intent(och, inode, lease_broken, 0, NULL);
+}
+
+/**
+ * After lease is taken, send the RPC MDS_REINT_RESYNC to the MDT
+ */
+static int ll_lease_file_resync(struct obd_client_handle *och,
+ struct inode *inode, unsigned long arg)
+{
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct md_op_data *op_data;
+ struct ll_ioc_lease_id ioc;
+ __u64 data_version_unused;
+ int rc;
+ ENTRY;
+
+ op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
+ LUSTRE_OPC_ANY, NULL);
+ if (IS_ERR(op_data))
+ RETURN(PTR_ERR(op_data));
+
+ if (copy_from_user(&ioc, (struct ll_ioc_lease_id __user *)arg,
+ sizeof(ioc)))
+ RETURN(-EFAULT);
+
+ /* before starting file resync, it's necessary to clean up page cache
+ * in client memory, otherwise once the layout version is increased,
+ * writing back cached data will be denied the OSTs. */
+ rc = ll_data_version(inode, &data_version_unused, LL_DV_WR_FLUSH);
+ if (rc)
+ GOTO(out, rc);
+
+ op_data->op_lease_handle = och->och_lease_handle;
+ op_data->op_mirror_id = ioc.lil_mirror_id;
+ rc = md_file_resync(sbi->ll_md_exp, op_data);
+ if (rc)
+ GOTO(out, rc);
+
+ EXIT;
+out:
+ ll_finish_md_op_data(op_data);
+ return rc;
+}
+
int ll_merge_attr(const struct lu_env *env, struct inode *inode)
{
struct ll_inode_info *lli = ll_i2info(inode);
ctime = LTIME_S(inode->i_ctime);
cl_object_attr_lock(obj);
- rc = cl_object_attr_get(env, obj, attr);
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDC_MERGE))
+ rc = -EINVAL;
+ else
+ rc = cl_object_attr_get(env, obj, attr);
cl_object_attr_unlock(obj);
if (rc != 0)
- GOTO(out_size_unlock, rc);
+ GOTO(out_size_unlock, rc = (rc == -ENODATA ? 0 : rc));
if (atime < attr->cat_atime)
atime = attr->cat_atime;
RETURN(rc);
}
+/**
+ * Set designated mirror for I/O.
+ *
+ * So far only read, write, and truncated can support to issue I/O to
+ * designated mirror.
+ */
+void ll_io_set_mirror(struct cl_io *io, const struct file *file)
+{
+ struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
+
+ /* clear layout version for generic(non-resync) I/O in case it carries
+ * stale layout version due to I/O restart */
+ io->ci_layout_version = 0;
+
+ /* FLR: disable non-delay for designated mirror I/O because obviously
+ * only one mirror is available */
+ if (fd->fd_designated_mirror > 0) {
+ io->ci_ndelay = 0;
+ io->ci_designated_mirror = fd->fd_designated_mirror;
+ io->ci_layout_version = fd->fd_layout_version;
+ io->ci_pio = 0; /* doesn't have a mechanism to pass mirror
+ * io to ptasks */
+ }
+
+ CDEBUG(D_VFSTRACE, "%s: desiginated mirror: %d\n",
+ file->f_path.dentry->d_name.name, io->ci_designated_mirror);
+}
+
static bool file_is_noatime(const struct file *file)
{
const struct vfsmount *mnt = file->f_path.mnt;
static void ll_io_init(struct cl_io *io, struct file *file, enum cl_io_type iot)
{
struct inode *inode = file_inode(file);
+ struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
memset(&io->u.ci_rw.rw_iter, 0, sizeof(io->u.ci_rw.rw_iter));
init_sync_kiocb(&io->u.ci_rw.rw_iocb, file);
io->u.ci_rw.rw_file = file;
io->u.ci_rw.rw_ptask = ll_file_io_ptask;
io->u.ci_rw.rw_nonblock = !!(file->f_flags & O_NONBLOCK);
+ io->ci_lock_no_expand = fd->ll_lock_no_expand;
+
if (iot == CIT_WRITE) {
io->u.ci_rw.rw_append = !!(file->f_flags & O_APPEND);
io->u.ci_rw.rw_sync = !!(file->f_flags & O_SYNC ||
io->ci_pio = !io->u.ci_rw.rw_append;
else
io->ci_pio = 0;
+
+ /* FLR: only use non-delay I/O for read as there is only one
+ * avaliable mirror for write. */
+ io->ci_ndelay = !(iot == CIT_WRITE);
+
+ ll_io_set_mirror(io, file);
}
static int ll_file_io_ptask(struct cfs_ptask *ptask)
__u16 refcheck;
ENTRY;
- env = cl_env_get(&refcheck);
- if (IS_ERR(env))
- RETURN(PTR_ERR(env));
-
CDEBUG(D_VFSTRACE, "%s: %s range: [%llu, %llu)\n",
file_dentry(file)->d_name.name,
pt->cip_iot == CIT_READ ? "read" : "write",
pos, pos + pt->cip_count);
-restart:
+ env = cl_env_get(&refcheck);
+ if (IS_ERR(env))
+ RETURN(PTR_ERR(env));
+
io = vvp_env_thread_io(env);
ll_io_init(io, file, pt->cip_iot);
io->u.ci_rw.rw_iter = pt->cip_iter;
}
cl_io_fini(env, io);
+ cl_env_put(env, &refcheck);
- if ((rc == 0 || rc == -ENODATA) &&
- pt->cip_result < pt->cip_count &&
- io->ci_need_restart) {
- CDEBUG(D_VFSTRACE,
- "%s: restart %s range: [%llu, %llu) ret: %zd, rc: %d\n",
- file_dentry(file)->d_name.name,
- pt->cip_iot == CIT_READ ? "read" : "write",
- pos, pos + pt->cip_count - pt->cip_result,
- pt->cip_result, rc);
- goto restart;
- }
+ pt->cip_need_restart = io->ci_need_restart;
CDEBUG(D_VFSTRACE, "%s: %s ret: %zd, rc: %d\n",
file_dentry(file)->d_name.name,
pt->cip_iot == CIT_READ ? "read" : "write",
pt->cip_result, rc);
- cl_env_put(env, &refcheck);
RETURN(pt->cip_result > 0 ? 0 : rc);
}
loff_t pos = *ppos;
ssize_t result = 0;
int rc = 0;
+ unsigned retried = 0;
+ bool restarted = false;
ENTRY;
if (args->via_io_subtype == IO_NORMAL) {
io->u.ci_rw.rw_iter = *args->u.normal.via_iter;
io->u.ci_rw.rw_iocb = *args->u.normal.via_iocb;
- } else {
- io->ci_pio = 0;
}
+ if (args->via_io_subtype != IO_NORMAL || restarted)
+ io->ci_pio = 0;
+ io->ci_ndelay_tried = retried;
if (cl_io_rw_init(env, io, iot, pos, count) == 0) {
bool range_locked = false;
if (args->via_io_subtype == IO_NORMAL) {
iov_iter_advance(args->u.normal.via_iter, io->ci_nob);
- pos += io->ci_nob;
+
+ /* CLIO is too complicated. See LU-11069. */
+ if (cl_io_is_append(io))
+ pos = io->u.ci_rw.rw_iocb.ki_pos;
+ else
+ pos += io->ci_nob;
+
args->u.normal.via_iocb->ki_pos = pos;
#ifdef HAVE_KIOCB_KI_LEFT
args->u.normal.via_iocb->ki_left = count;
out:
cl_io_fini(env, io);
+ CDEBUG(D_VFSTRACE,
+ "%s: %d io complete with rc: %d, result: %zd, restart: %d\n",
+ file->f_path.dentry->d_name.name,
+ iot, rc, result, io->ci_need_restart);
+
if ((rc == 0 || rc == -ENODATA) && count > 0 && io->ci_need_restart) {
CDEBUG(D_VFSTRACE,
"%s: restart %s range: [%llu, %llu) ret: %zd, rc: %d\n",
file_dentry(file)->d_name.name,
iot == CIT_READ ? "read" : "write",
pos, pos + count, result, rc);
+ /* preserve the tried count for FLR */
+ retried = io->ci_ndelay_tried;
+ restarted = true;
goto restart;
}
* \retval - number of bytes have been read, or error code if error occurred.
*/
static ssize_t
-ll_do_fast_read(const struct lu_env *env, struct kiocb *iocb,
- struct iov_iter *iter)
+ll_do_fast_read(struct kiocb *iocb, struct iov_iter *iter)
{
ssize_t result;
if (iocb->ki_filp->f_flags & O_DIRECT)
return 0;
- ll_cl_add(iocb->ki_filp, env, NULL, LCC_RW);
result = generic_file_read_iter(iocb, iter);
- ll_cl_remove(iocb->ki_filp, env);
/* If the first page is not in cache, generic_file_aio_read() will be
* returned with -ENODATA.
ssize_t rc2;
__u16 refcheck;
+ result = ll_do_fast_read(iocb, to);
+ if (result < 0 || iov_iter_count(to) == 0)
+ GOTO(out, result);
+
env = cl_env_get(&refcheck);
if (IS_ERR(env))
return PTR_ERR(env);
- result = ll_do_fast_read(env, iocb, to);
- if (result < 0 || iov_iter_count(to) == 0)
- GOTO(out, result);
-
args = ll_env_args(env, IO_NORMAL);
args->u.normal.via_iter = to;
args->u.normal.via_iocb = iocb;
else if (result == 0)
result = rc2;
-out:
cl_env_put(env, &refcheck);
+out:
return result;
}
+/**
+ * Similar trick to ll_do_fast_read, this improves write speed for tiny writes.
+ * If a page is already in the page cache and dirty (and some other things -
+ * See ll_tiny_write_begin for the instantiation of these rules), then we can
+ * write to it without doing a full I/O, because Lustre already knows about it
+ * and will write it out. This saves a lot of processing time.
+ *
+ * All writes here are within one page, so exclusion is handled by the page
+ * lock on the vm page. We do not do tiny writes for writes which touch
+ * multiple pages because it's very unlikely multiple sequential pages are
+ * are already dirty.
+ *
+ * We limit these to < PAGE_SIZE because PAGE_SIZE writes are relatively common
+ * and are unlikely to be to already dirty pages.
+ *
+ * Attribute updates are important here, we do them in ll_tiny_write_end.
+ */
+static ssize_t ll_do_tiny_write(struct kiocb *iocb, struct iov_iter *iter)
+{
+ ssize_t count = iov_iter_count(iter);
+ struct file *file = iocb->ki_filp;
+ struct inode *inode = file_inode(file);
+ ssize_t result = 0;
+
+ ENTRY;
+
+ /* Restrict writes to single page and < PAGE_SIZE. See comment at top
+ * of function for why.
+ */
+ if (count >= PAGE_SIZE ||
+ (iocb->ki_pos & (PAGE_SIZE-1)) + count > PAGE_SIZE)
+ RETURN(0);
+
+ result = __generic_file_write_iter(iocb, iter);
+
+ /* If the page is not already dirty, ll_tiny_write_begin returns
+ * -ENODATA. We continue on to normal write.
+ */
+ if (result == -ENODATA)
+ result = 0;
+
+ if (result > 0) {
+ ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_WRITE_BYTES,
+ result);
+ ll_file_set_flag(ll_i2info(inode), LLIF_DATA_MODIFIED);
+ }
+
+ CDEBUG(D_VFSTRACE, "result: %zu, original count %zu\n", result, count);
+
+ RETURN(result);
+}
+
/*
* Write to a file (through the page cache).
*/
{
struct vvp_io_args *args;
struct lu_env *env;
- ssize_t result;
+ ssize_t rc_tiny = 0, rc_normal;
__u16 refcheck;
+ ENTRY;
+
+ /* NB: we can't do direct IO for tiny writes because they use the page
+ * cache, we can't do sync writes because tiny writes can't flush
+ * pages, and we can't do append writes because we can't guarantee the
+ * required DLM locks are held to protect file size.
+ */
+ if (ll_sbi_has_tiny_write(ll_i2sbi(file_inode(iocb->ki_filp))) &&
+ !(iocb->ki_filp->f_flags & (O_DIRECT | O_SYNC | O_APPEND)))
+ rc_tiny = ll_do_tiny_write(iocb, from);
+
+ /* In case of error, go on and try normal write - Only stop if tiny
+ * write completed I/O.
+ */
+ if (iov_iter_count(from) == 0)
+ GOTO(out, rc_normal = rc_tiny);
+
env = cl_env_get(&refcheck);
if (IS_ERR(env))
return PTR_ERR(env);
args->u.normal.via_iter = from;
args->u.normal.via_iocb = iocb;
- result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_WRITE,
+ rc_normal = ll_file_io_generic(env, args, iocb->ki_filp, CIT_WRITE,
&iocb->ki_pos, iov_iter_count(from));
+
+ /* On success, combine bytes written. */
+ if (rc_tiny >= 0 && rc_normal > 0)
+ rc_normal += rc_tiny;
+ /* On error, only return error from normal write if tiny write did not
+ * write any bytes. Otherwise return bytes written by tiny write.
+ */
+ else if (rc_tiny > 0)
+ rc_normal = rc_tiny;
+
cl_env_put(env, &refcheck);
- return result;
+out:
+ RETURN(rc_normal);
}
#ifndef HAVE_FILE_OPERATIONS_READ_WRITE_ITER
static ssize_t ll_file_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
{
- struct lu_env *env;
struct iovec iov = { .iov_base = buf, .iov_len = count };
- struct kiocb *kiocb;
+ struct kiocb kiocb;
ssize_t result;
- __u16 refcheck;
ENTRY;
- env = cl_env_get(&refcheck);
- if (IS_ERR(env))
- RETURN(PTR_ERR(env));
-
- kiocb = &ll_env_info(env)->lti_kiocb;
- init_sync_kiocb(kiocb, file);
- kiocb->ki_pos = *ppos;
+ init_sync_kiocb(&kiocb, file);
+ kiocb.ki_pos = *ppos;
#ifdef HAVE_KIOCB_KI_LEFT
- kiocb->ki_left = count;
+ kiocb.ki_left = count;
#elif defined(HAVE_KI_NBYTES)
- kiocb->ki_nbytes = count;
+ kiocb.i_nbytes = count;
#endif
- result = ll_file_aio_read(kiocb, &iov, 1, kiocb->ki_pos);
- *ppos = kiocb->ki_pos;
+ result = ll_file_aio_read(&kiocb, &iov, 1, kiocb.ki_pos);
+ *ppos = kiocb.ki_pos;
- cl_env_put(env, &refcheck);
RETURN(result);
}
static ssize_t ll_file_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
- struct lu_env *env;
struct iovec iov = { .iov_base = (void __user *)buf,
.iov_len = count };
- struct kiocb *kiocb;
- ssize_t result;
- __u16 refcheck;
- ENTRY;
+ struct kiocb kiocb;
+ ssize_t result;
- env = cl_env_get(&refcheck);
- if (IS_ERR(env))
- RETURN(PTR_ERR(env));
+ ENTRY;
- kiocb = &ll_env_info(env)->lti_kiocb;
- init_sync_kiocb(kiocb, file);
- kiocb->ki_pos = *ppos;
+ init_sync_kiocb(&kiocb, file);
+ kiocb.ki_pos = *ppos;
#ifdef HAVE_KIOCB_KI_LEFT
- kiocb->ki_left = count;
+ kiocb.ki_left = count;
#elif defined(HAVE_KI_NBYTES)
- kiocb->ki_nbytes = count;
+ kiocb.ki_nbytes = count;
#endif
- result = ll_file_aio_write(kiocb, &iov, 1, kiocb->ki_pos);
- *ppos = kiocb->ki_pos;
+ result = ll_file_aio_write(&kiocb, &iov, 1, kiocb.ki_pos);
+ *ppos = kiocb.ki_pos;
- cl_env_put(env, &refcheck);
RETURN(result);
}
#endif /* !HAVE_FILE_OPERATIONS_READ_WRITE_ITER */
(struct lov_user_md_v3 *)lmm);
if (S_ISREG(body->mbo_mode))
lustre_swab_lov_user_md_objects(
- ((struct lov_user_md_v3 *)lmm)->lmm_objects,
- stripe_count);
+ ((struct lov_user_md_v3 *)lmm)->lmm_objects,
+ stripe_count);
} else if (lmm->lmm_magic ==
cpu_to_le32(LOV_MAGIC_COMP_V1)) {
lustre_swab_lov_comp_md_v1(
(struct lov_comp_md_v1 *)lmm);
}
- }
+ }
out:
- *lmmp = lmm;
- *lmm_size = lmmsize;
- *request = req;
- return rc;
+ *lmmp = lmm;
+ *lmm_size = lmmsize;
+ *request = req;
+ return rc;
}
static int ll_lov_setea(struct inode *inode, struct file *file,
struct cl_layout cl = {
.cl_is_composite = false,
};
+ struct lu_extent ext = {
+ .e_start = 0,
+ .e_end = OBD_OBJECT_EOF,
+ };
env = cl_env_get(&refcheck);
if (IS_ERR(env))
rc = cl_object_layout_get(env, obj, &cl);
if (!rc && cl.cl_is_composite)
- rc = ll_layout_write_intent(inode, 0, OBD_OBJECT_EOF);
+ rc = ll_layout_write_intent(inode, LAYOUT_INTENT_WRITE,
+ &ext);
cl_env_put(env, &refcheck);
if (rc)
RETURN(rc);
}
-/*
- * Read the data_version for inode.
- *
- * This value is computed using stripe object version on OST.
- * Version is computed using server side locking.
- *
- * @param flags if do sync on the OST side;
- * 0: no sync
- * LL_DV_RD_FLUSH: flush dirty pages, LCK_PR on OSTs
- * LL_DV_WR_FLUSH: drop all caching pages, LCK_PW on OSTs
- */
-int ll_data_version(struct inode *inode, __u64 *data_version, int flags)
+static int
+ll_ioc_data_version(struct inode *inode, struct ioc_data_version *ioc)
{
struct cl_object *obj = ll_i2info(inode)->lli_clob;
struct lu_env *env;
ENTRY;
+ ioc->idv_version = 0;
+ ioc->idv_layout_version = UINT_MAX;
+
/* If no file object initialized, we consider its version is 0. */
- if (obj == NULL) {
- *data_version = 0;
+ if (obj == NULL)
RETURN(0);
- }
env = cl_env_get(&refcheck);
if (IS_ERR(env))
io = vvp_env_thread_io(env);
io->ci_obj = obj;
io->u.ci_data_version.dv_data_version = 0;
- io->u.ci_data_version.dv_flags = flags;
+ io->u.ci_data_version.dv_layout_version = UINT_MAX;
+ io->u.ci_data_version.dv_flags = ioc->idv_flags;
restart:
if (cl_io_init(env, io, CIT_DATA_VERSION, io->ci_obj) == 0)
else
result = io->ci_result;
- *data_version = io->u.ci_data_version.dv_data_version;
+ ioc->idv_version = io->u.ci_data_version.dv_data_version;
+ ioc->idv_layout_version = io->u.ci_data_version.dv_layout_version;
cl_io_fini(env, io);
}
/*
+ * Read the data_version for inode.
+ *
+ * This value is computed using stripe object version on OST.
+ * Version is computed using server side locking.
+ *
+ * @param flags if do sync on the OST side;
+ * 0: no sync
+ * LL_DV_RD_FLUSH: flush dirty pages, LCK_PR on OSTs
+ * LL_DV_WR_FLUSH: drop all caching pages, LCK_PW on OSTs
+ */
+int ll_data_version(struct inode *inode, __u64 *data_version, int flags)
+{
+ struct ioc_data_version ioc = { .idv_flags = flags };
+ int rc;
+
+ rc = ll_ioc_data_version(inode, &ioc);
+ if (!rc)
+ *data_version = ioc.idv_version;
+
+ return rc;
+}
+
+/*
* Trigger a HSM release request for the provided inode.
*/
int ll_hsm_release(struct inode *inode)
if (IS_ERR(env))
GOTO(out, rc = PTR_ERR(env));
- ll_merge_attr(env, inode);
+ rc = ll_merge_attr(env, inode);
cl_env_put(env, &refcheck);
+ /* If error happen, we have the wrong size for a file.
+ * Don't release it.
+ */
+ if (rc != 0)
+ GOTO(out, rc);
+
/* Release the file.
* NB: lease lock handle is released in mdc_hsm_release_pack() because
* we still need it to pack l_remote_handle to MDT. */
inode_lock(inode);
- rc = ll_setattr_raw(file_dentry(file), attr, true);
+ rc = ll_setattr_raw(file_dentry(file), attr, 0, true);
if (rc == -ENODATA)
rc = 0;
struct iattr ia = {
.ia_valid = ATTR_ATIME | ATTR_ATIME_SET |
ATTR_MTIME | ATTR_MTIME_SET |
- ATTR_CTIME | ATTR_CTIME_SET,
+ ATTR_CTIME,
.ia_atime = {
.tv_sec = lfu->lfu_atime_sec,
.tv_nsec = lfu->lfu_atime_nsec,
RETURN(-EINVAL);
inode_lock(inode);
- rc = ll_setattr_raw(file_dentry(file), &ia, false);
+ rc = ll_setattr_raw(file_dentry(file), &ia, OP_XVALID_CTIME_SET,
+ false);
inode_unlock(inode);
RETURN(rc);
}
-/*
- * Give file access advices
+static enum cl_lock_mode cl_mode_user_to_kernel(enum lock_mode_user mode)
+{
+ switch (mode) {
+ case MODE_READ_USER:
+ return CLM_READ;
+ case MODE_WRITE_USER:
+ return CLM_WRITE;
+ default:
+ return -EINVAL;
+ }
+}
+
+static const char *const user_lockname[] = LOCK_MODE_NAMES;
+
+/* Used to allow the upper layers of the client to request an LDLM lock
+ * without doing an actual read or write.
*
- * The ladvise interface is similar to Linux fadvise() system call, except it
- * forwards the advices directly from Lustre client to server. The server side
- * codes will apply appropriate read-ahead and caching techniques for the
- * corresponding files.
+ * Used for ladvise lockahead to manually request specific locks.
*
- * A typical workload for ladvise is e.g. a bunch of different clients are
- * doing small random reads of a file, so prefetching pages into OSS cache
- * with big linear reads before the random IO is a net benefit. Fetching
- * all that data into each client cache with fadvise() may not be, due to
- * much more data being sent to the client.
+ * \param[in] file file this ladvise lock request is on
+ * \param[in] ladvise ladvise struct describing this lock request
+ *
+ * \retval 0 success, no detailed result available (sync requests
+ * and requests sent to the server [not handled locally]
+ * cannot return detailed results)
+ * \retval LLA_RESULT_{SAME,DIFFERENT} - detailed result of the lock request,
+ * see definitions for details.
+ * \retval negative negative errno on error
*/
-static int ll_ladvise(struct inode *inode, struct file *file, __u64 flags,
- struct llapi_lu_ladvise *ladvise)
+int ll_file_lock_ahead(struct file *file, struct llapi_lu_ladvise *ladvise)
{
- struct lu_env *env;
- struct cl_io *io;
- struct cl_ladvise_io *lio;
- int rc;
- __u16 refcheck;
+ struct lu_env *env = NULL;
+ struct cl_io *io = NULL;
+ struct cl_lock *lock = NULL;
+ struct cl_lock_descr *descr = NULL;
+ struct dentry *dentry = file->f_path.dentry;
+ struct inode *inode = dentry->d_inode;
+ enum cl_lock_mode cl_mode;
+ off_t start = ladvise->lla_start;
+ off_t end = ladvise->lla_end;
+ int result;
+ __u16 refcheck;
+
+ ENTRY;
+
+ CDEBUG(D_VFSTRACE, "Lock request: file=%.*s, inode=%p, mode=%s "
+ "start=%llu, end=%llu\n", dentry->d_name.len,
+ dentry->d_name.name, dentry->d_inode,
+ user_lockname[ladvise->lla_lockahead_mode], (__u64) start,
+ (__u64) end);
+
+ cl_mode = cl_mode_user_to_kernel(ladvise->lla_lockahead_mode);
+ if (cl_mode < 0)
+ GOTO(out, result = cl_mode);
+
+ /* Get IO environment */
+ result = cl_io_get(inode, &env, &io, &refcheck);
+ if (result <= 0)
+ GOTO(out, result);
+
+ result = cl_io_init(env, io, CIT_MISC, io->ci_obj);
+ if (result > 0) {
+ /*
+ * nothing to do for this io. This currently happens when
+ * stripe sub-object's are not yet created.
+ */
+ result = io->ci_result;
+ } else if (result == 0) {
+ lock = vvp_env_lock(env);
+ descr = &lock->cll_descr;
+
+ descr->cld_obj = io->ci_obj;
+ /* Convert byte offsets to pages */
+ descr->cld_start = cl_index(io->ci_obj, start);
+ descr->cld_end = cl_index(io->ci_obj, end);
+ descr->cld_mode = cl_mode;
+ /* CEF_MUST is used because we do not want to convert a
+ * lockahead request to a lockless lock */
+ descr->cld_enq_flags = CEF_MUST | CEF_LOCK_NO_EXPAND |
+ CEF_NONBLOCK;
+
+ if (ladvise->lla_peradvice_flags & LF_ASYNC)
+ descr->cld_enq_flags |= CEF_SPECULATIVE;
+
+ result = cl_lock_request(env, io, lock);
+
+ /* On success, we need to release the lock */
+ if (result >= 0)
+ cl_lock_release(env, lock);
+ }
+ cl_io_fini(env, io);
+ cl_env_put(env, &refcheck);
+
+ /* -ECANCELED indicates a matching lock with a different extent
+ * was already present, and -EEXIST indicates a matching lock
+ * on exactly the same extent was already present.
+ * We convert them to positive values for userspace to make
+ * recognizing true errors easier.
+ * Note we can only return these detailed results on async requests,
+ * as sync requests look the same as i/o requests for locking. */
+ if (result == -ECANCELED)
+ result = LLA_RESULT_DIFFERENT;
+ else if (result == -EEXIST)
+ result = LLA_RESULT_SAME;
+
+out:
+ RETURN(result);
+}
+static const char *const ladvise_names[] = LU_LADVISE_NAMES;
+
+static int ll_ladvise_sanity(struct inode *inode,
+ struct llapi_lu_ladvise *ladvise)
+{
+ enum lu_ladvise_type advice = ladvise->lla_advice;
+ /* Note the peradvice flags is a 32 bit field, so per advice flags must
+ * be in the first 32 bits of enum ladvise_flags */
+ __u32 flags = ladvise->lla_peradvice_flags;
+ /* 3 lines at 80 characters per line, should be plenty */
+ int rc = 0;
+
+ if (advice > LU_LADVISE_MAX || advice == LU_LADVISE_INVALID) {
+ rc = -EINVAL;
+ CDEBUG(D_VFSTRACE, "%s: advice with value '%d' not recognized,"
+ "last supported advice is %s (value '%d'): rc = %d\n",
+ ll_get_fsname(inode->i_sb, NULL, 0), advice,
+ ladvise_names[LU_LADVISE_MAX-1], LU_LADVISE_MAX-1, rc);
+ GOTO(out, rc);
+ }
+
+ /* Per-advice checks */
+ switch (advice) {
+ case LU_LADVISE_LOCKNOEXPAND:
+ if (flags & ~LF_LOCKNOEXPAND_MASK) {
+ rc = -EINVAL;
+ CDEBUG(D_VFSTRACE, "%s: Invalid flags (%x) for %s: "
+ "rc = %d\n",
+ ll_get_fsname(inode->i_sb, NULL, 0), flags,
+ ladvise_names[advice], rc);
+ GOTO(out, rc);
+ }
+ break;
+ case LU_LADVISE_LOCKAHEAD:
+ /* Currently only READ and WRITE modes can be requested */
+ if (ladvise->lla_lockahead_mode >= MODE_MAX_USER ||
+ ladvise->lla_lockahead_mode == 0) {
+ rc = -EINVAL;
+ CDEBUG(D_VFSTRACE, "%s: Invalid mode (%d) for %s: "
+ "rc = %d\n",
+ ll_get_fsname(inode->i_sb, NULL, 0),
+ ladvise->lla_lockahead_mode,
+ ladvise_names[advice], rc);
+ GOTO(out, rc);
+ }
+ case LU_LADVISE_WILLREAD:
+ case LU_LADVISE_DONTNEED:
+ default:
+ /* Note fall through above - These checks apply to all advices
+ * except LOCKNOEXPAND */
+ if (flags & ~LF_DEFAULT_MASK) {
+ rc = -EINVAL;
+ CDEBUG(D_VFSTRACE, "%s: Invalid flags (%x) for %s: "
+ "rc = %d\n",
+ ll_get_fsname(inode->i_sb, NULL, 0), flags,
+ ladvise_names[advice], rc);
+ GOTO(out, rc);
+ }
+ if (ladvise->lla_start >= ladvise->lla_end) {
+ rc = -EINVAL;
+ CDEBUG(D_VFSTRACE, "%s: Invalid range (%llu to %llu) "
+ "for %s: rc = %d\n",
+ ll_get_fsname(inode->i_sb, NULL, 0),
+ ladvise->lla_start, ladvise->lla_end,
+ ladvise_names[advice], rc);
+ GOTO(out, rc);
+ }
+ break;
+ }
+
+out:
+ return rc;
+}
+#undef ERRSIZE
+
+/*
+ * Give file access advices
+ *
+ * The ladvise interface is similar to Linux fadvise() system call, except it
+ * forwards the advices directly from Lustre client to server. The server side
+ * codes will apply appropriate read-ahead and caching techniques for the
+ * corresponding files.
+ *
+ * A typical workload for ladvise is e.g. a bunch of different clients are
+ * doing small random reads of a file, so prefetching pages into OSS cache
+ * with big linear reads before the random IO is a net benefit. Fetching
+ * all that data into each client cache with fadvise() may not be, due to
+ * much more data being sent to the client.
+ */
+static int ll_ladvise(struct inode *inode, struct file *file, __u64 flags,
+ struct llapi_lu_ladvise *ladvise)
+{
+ struct lu_env *env;
+ struct cl_io *io;
+ struct cl_ladvise_io *lio;
+ int rc;
+ __u16 refcheck;
ENTRY;
env = cl_env_get(&refcheck);
RETURN(rc);
}
+static int ll_lock_noexpand(struct file *file, int flags)
+{
+ struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
+
+ fd->ll_lock_no_expand = !(flags & LF_UNSET);
+
+ return 0;
+}
+
int ll_ioctl_fsgetxattr(struct inode *inode, unsigned int cmd,
unsigned long arg)
{
sizeof(fsxattr)))
RETURN(-EFAULT);
+ fsxattr.fsx_xflags = ll_inode_flags_to_xflags(inode->i_flags);
+ if (ll_file_test_flag(ll_i2info(inode), LLIF_PROJECT_INHERIT))
+ fsxattr.fsx_xflags |= FS_XFLAG_PROJINHERIT;
fsxattr.fsx_projid = ll_i2info(inode)->lli_projid;
if (copy_to_user((struct fsxattr __user *)arg,
&fsxattr, sizeof(fsxattr)))
RETURN(0);
}
+int ll_ioctl_check_project(struct inode *inode, struct fsxattr *fa)
+{
+ /*
+ * Project Quota ID state is only allowed to change from within the init
+ * namespace. Enforce that restriction only if we are trying to change
+ * the quota ID state. Everything else is allowed in user namespaces.
+ */
+ if (current_user_ns() == &init_user_ns)
+ return 0;
+
+ if (ll_i2info(inode)->lli_projid != fa->fsx_projid)
+ return -EINVAL;
+
+ if (ll_file_test_flag(ll_i2info(inode), LLIF_PROJECT_INHERIT)) {
+ if (!(fa->fsx_xflags & FS_XFLAG_PROJINHERIT))
+ return -EINVAL;
+ } else {
+ if (fa->fsx_xflags & FS_XFLAG_PROJINHERIT)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
int ll_ioctl_fssetxattr(struct inode *inode, unsigned int cmd,
unsigned long arg)
{
struct ptlrpc_request *req = NULL;
int rc = 0;
struct fsxattr fsxattr;
+ struct cl_object *obj;
+ struct iattr *attr;
+ int flags;
- /* only root could change project ID */
- if (!cfs_capable(CFS_CAP_SYS_ADMIN))
- RETURN(-EPERM);
+ if (copy_from_user(&fsxattr,
+ (const struct fsxattr __user *)arg,
+ sizeof(fsxattr)))
+ RETURN(-EFAULT);
+
+ rc = ll_ioctl_check_project(inode, &fsxattr);
+ if (rc)
+ RETURN(rc);
op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
LUSTRE_OPC_ANY, NULL);
if (IS_ERR(op_data))
RETURN(PTR_ERR(op_data));
- if (copy_from_user(&fsxattr,
- (const struct fsxattr __user *)arg,
- sizeof(fsxattr)))
- GOTO(out_fsxattr1, rc = -EFAULT);
-
+ flags = ll_xflags_to_inode_flags(fsxattr.fsx_xflags);
+ op_data->op_attr_flags = ll_inode_to_ext_flags(flags);
+ if (fsxattr.fsx_xflags & FS_XFLAG_PROJINHERIT)
+ op_data->op_attr_flags |= LUSTRE_PROJINHERIT_FL;
op_data->op_projid = fsxattr.fsx_projid;
- op_data->op_attr.ia_valid |= MDS_ATTR_PROJID;
+ op_data->op_xvalid |= OP_XVALID_PROJID | OP_XVALID_FLAGS;
rc = md_setattr(ll_i2sbi(inode)->ll_md_exp, op_data, NULL,
0, &req);
ptlrpc_req_finished(req);
+ if (rc)
+ GOTO(out_fsxattr, rc);
+ ll_update_inode_flags(inode, op_data->op_attr_flags);
+ obj = ll_i2info(inode)->lli_clob;
+ if (obj == NULL)
+ GOTO(out_fsxattr, rc);
+
+ OBD_ALLOC_PTR(attr);
+ if (attr == NULL)
+ GOTO(out_fsxattr, rc = -ENOMEM);
-out_fsxattr1:
+ rc = cl_setattr_ost(obj, attr, OP_XVALID_FLAGS,
+ fsxattr.fsx_xflags);
+ OBD_FREE_PTR(attr);
+out_fsxattr:
ll_finish_md_op_data(op_data);
RETURN(rc);
+}
+
+static long ll_file_unlock_lease(struct file *file, struct ll_ioc_lease *ioc,
+ unsigned long arg)
+{
+ struct inode *inode = file_inode(file);
+ struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct obd_client_handle *och = NULL;
+ struct split_param sp;
+ bool lease_broken;
+ fmode_t fmode = 0;
+ enum mds_op_bias bias = 0;
+ struct file *layout_file = NULL;
+ void *data = NULL;
+ size_t data_size = 0;
+ long rc;
+ ENTRY;
+
+ mutex_lock(&lli->lli_och_mutex);
+ if (fd->fd_lease_och != NULL) {
+ och = fd->fd_lease_och;
+ fd->fd_lease_och = NULL;
+ }
+ mutex_unlock(&lli->lli_och_mutex);
+
+ if (och == NULL)
+ GOTO(out, rc = -ENOLCK);
+
+ fmode = och->och_flags;
+
+ switch (ioc->lil_flags) {
+ case LL_LEASE_RESYNC_DONE:
+ if (ioc->lil_count > IOC_IDS_MAX)
+ GOTO(out, rc = -EINVAL);
+
+ data_size = offsetof(typeof(*ioc), lil_ids[ioc->lil_count]);
+ OBD_ALLOC(data, data_size);
+ if (!data)
+ GOTO(out, rc = -ENOMEM);
+
+ if (copy_from_user(data, (void __user *)arg, data_size))
+ GOTO(out, rc = -EFAULT);
+
+ bias = MDS_CLOSE_RESYNC_DONE;
+ break;
+ case LL_LEASE_LAYOUT_MERGE: {
+ int fd;
+
+ if (ioc->lil_count != 1)
+ GOTO(out, rc = -EINVAL);
+
+ arg += sizeof(*ioc);
+ if (copy_from_user(&fd, (void __user *)arg, sizeof(__u32)))
+ GOTO(out, rc = -EFAULT);
+
+ layout_file = fget(fd);
+ if (!layout_file)
+ GOTO(out, rc = -EBADF);
+
+ if ((file->f_flags & O_ACCMODE) == O_RDONLY ||
+ (layout_file->f_flags & O_ACCMODE) == O_RDONLY)
+ GOTO(out, rc = -EPERM);
+
+ data = file_inode(layout_file);
+ bias = MDS_CLOSE_LAYOUT_MERGE;
+ break;
+ }
+ case LL_LEASE_LAYOUT_SPLIT: {
+ int fdv;
+ int mirror_id;
+
+ if (ioc->lil_count != 2)
+ GOTO(out, rc = -EINVAL);
+
+ arg += sizeof(*ioc);
+ if (copy_from_user(&fdv, (void __user *)arg, sizeof(__u32)))
+ GOTO(out, rc = -EFAULT);
+
+ arg += sizeof(__u32);
+ if (copy_from_user(&mirror_id, (void __user *)arg,
+ sizeof(__u32)))
+ GOTO(out, rc = -EFAULT);
+
+ layout_file = fget(fdv);
+ if (!layout_file)
+ GOTO(out, rc = -EBADF);
+
+ sp.sp_inode = file_inode(layout_file);
+ sp.sp_mirror_id = (__u16)mirror_id;
+ data = &sp;
+ bias = MDS_CLOSE_LAYOUT_SPLIT;
+ break;
+ }
+ default:
+ /* without close intent */
+ break;
+ }
+
+ rc = ll_lease_close_intent(och, inode, &lease_broken, bias, data);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ rc = ll_lease_och_release(inode, file);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ if (lease_broken)
+ fmode = 0;
+ EXIT;
+
+out:
+ switch (ioc->lil_flags) {
+ case LL_LEASE_RESYNC_DONE:
+ if (data)
+ OBD_FREE(data, data_size);
+ break;
+ case LL_LEASE_LAYOUT_MERGE:
+ case LL_LEASE_LAYOUT_SPLIT:
+ if (layout_file)
+ fput(layout_file);
+ break;
+ }
+
+ if (!rc)
+ rc = ll_lease_type_from_fmode(fmode);
+ RETURN(rc);
+}
+
+static long ll_file_set_lease(struct file *file, struct ll_ioc_lease *ioc,
+ unsigned long arg)
+{
+ struct inode *inode = file_inode(file);
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
+ struct obd_client_handle *och = NULL;
+ __u64 open_flags = 0;
+ bool lease_broken;
+ fmode_t fmode;
+ long rc;
+ ENTRY;
+
+ switch (ioc->lil_mode) {
+ case LL_LEASE_WRLCK:
+ if (!(file->f_mode & FMODE_WRITE))
+ RETURN(-EPERM);
+ fmode = FMODE_WRITE;
+ break;
+ case LL_LEASE_RDLCK:
+ if (!(file->f_mode & FMODE_READ))
+ RETURN(-EPERM);
+ fmode = FMODE_READ;
+ break;
+ case LL_LEASE_UNLCK:
+ RETURN(ll_file_unlock_lease(file, ioc, arg));
+ default:
+ RETURN(-EINVAL);
+ }
+
+ CDEBUG(D_INODE, "Set lease with mode %u\n", fmode);
+ /* apply for lease */
+ if (ioc->lil_flags & LL_LEASE_RESYNC)
+ open_flags = MDS_OPEN_RESYNC;
+ och = ll_lease_open(inode, file, fmode, open_flags);
+ if (IS_ERR(och))
+ RETURN(PTR_ERR(och));
+ if (ioc->lil_flags & LL_LEASE_RESYNC) {
+ rc = ll_lease_file_resync(och, inode, arg);
+ if (rc) {
+ ll_lease_close(och, inode, NULL);
+ RETURN(rc);
+ }
+ rc = ll_layout_refresh(inode, &fd->fd_layout_version);
+ if (rc) {
+ ll_lease_close(och, inode, NULL);
+ RETURN(rc);
+ }
+ }
+
+ rc = 0;
+ mutex_lock(&lli->lli_och_mutex);
+ if (fd->fd_lease_och == NULL) {
+ fd->fd_lease_och = och;
+ och = NULL;
+ }
+ mutex_unlock(&lli->lli_och_mutex);
+ if (och != NULL) {
+ /* impossible now that only excl is supported for now */
+ ll_lease_close(och, inode, &lease_broken);
+ rc = -EBUSY;
+ }
+ RETURN(rc);
}
static long
CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), cmd=%x\n",
PFID(ll_inode2fid(inode)), inode, cmd);
- ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_IOCTL, 1);
+ ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_IOCTL, 1);
- /* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */
- if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */
- RETURN(-ENOTTY);
+ /* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */
+ if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */
+ RETURN(-ENOTTY);
- switch(cmd) {
- case LL_IOC_GETFLAGS:
- /* Get the current value of the file flags */
+ switch (cmd) {
+ case LL_IOC_GETFLAGS:
+ /* Get the current value of the file flags */
return put_user(fd->fd_flags, (int __user *)arg);
case LL_IOC_SETFLAGS:
case LL_IOC_CLRFLAGS:
struct ll_inode_info *lli;
struct obd_client_handle *och = NULL;
- if (lsl.sl_flags != SWAP_LAYOUTS_CLOSE)
- GOTO(out, rc = -EINVAL);
-
lli = ll_i2info(inode);
mutex_lock(&lli->lli_och_mutex);
if (fd->fd_lease_och != NULL) {
case LL_IOC_LOV_GETSTRIPE:
case LL_IOC_LOV_GETSTRIPE_NEW:
RETURN(ll_file_getstripe(inode, (void __user *)arg, 0));
- case FSFILT_IOC_GETFLAGS:
- case FSFILT_IOC_SETFLAGS:
- RETURN(ll_iocontrol(inode, file, cmd, arg));
- case FSFILT_IOC_GETVERSION_OLD:
- case FSFILT_IOC_GETVERSION:
+ case FS_IOC_GETFLAGS:
+ case FS_IOC_SETFLAGS:
+ RETURN(ll_iocontrol(inode, file, cmd, arg));
+ case FSFILT_IOC_GETVERSION:
+ case FS_IOC_GETVERSION:
RETURN(put_user(inode->i_generation, (int __user *)arg));
+ /* We need to special case any other ioctls we want to handle,
+ * to send them to the MDS/OST as appropriate and to properly
+ * network encode the arg field. */
+ case FS_IOC_SETVERSION:
+ RETURN(-ENOTSUPP);
+
case LL_IOC_GROUP_LOCK:
RETURN(ll_get_grouplock(inode, file, arg));
case LL_IOC_GROUP_UNLOCK:
case IOC_OBD_STATFS:
RETURN(ll_obd_statfs(inode, (void __user *)arg));
- /* We need to special case any other ioctls we want to handle,
- * to send them to the MDS/OST as appropriate and to properly
- * network encode the arg field.
- case FSFILT_IOC_SETVERSION_OLD:
- case FSFILT_IOC_SETVERSION:
- */
case LL_IOC_FLUSHCTX:
RETURN(ll_flush_ctx(inode));
case LL_IOC_PATH2FID: {
RETURN(-EFAULT);
idv.idv_flags &= LL_DV_RD_FLUSH | LL_DV_WR_FLUSH;
- rc = ll_data_version(inode, &idv.idv_version, idv.idv_flags);
+ rc = ll_ioc_data_version(inode, &idv);
if (rc == 0 &&
copy_to_user((char __user *)arg, &idv, sizeof(idv)))
OBD_FREE_PTR(hca);
RETURN(rc);
}
- case LL_IOC_SET_LEASE: {
- struct ll_inode_info *lli = ll_i2info(inode);
- struct obd_client_handle *och = NULL;
- bool lease_broken;
- fmode_t fmode;
-
- switch (arg) {
- case LL_LEASE_WRLCK:
- if (!(file->f_mode & FMODE_WRITE))
- RETURN(-EPERM);
- fmode = FMODE_WRITE;
- break;
- case LL_LEASE_RDLCK:
- if (!(file->f_mode & FMODE_READ))
- RETURN(-EPERM);
- fmode = FMODE_READ;
- break;
- case LL_LEASE_UNLCK:
- mutex_lock(&lli->lli_och_mutex);
- if (fd->fd_lease_och != NULL) {
- och = fd->fd_lease_och;
- fd->fd_lease_och = NULL;
- }
- mutex_unlock(&lli->lli_och_mutex);
+ case LL_IOC_SET_LEASE_OLD: {
+ struct ll_ioc_lease ioc = { .lil_mode = (__u32)arg };
- if (och == NULL)
- RETURN(-ENOLCK);
-
- fmode = och->och_flags;
- rc = ll_lease_close(och, inode, &lease_broken);
- if (rc < 0)
- RETURN(rc);
-
- rc = ll_lease_och_release(inode, file);
- if (rc < 0)
- RETURN(rc);
-
- if (lease_broken)
- fmode = 0;
-
- RETURN(ll_lease_type_from_fmode(fmode));
- default:
- RETURN(-EINVAL);
- }
-
- CDEBUG(D_INODE, "Set lease with mode %u\n", fmode);
+ RETURN(ll_file_set_lease(file, &ioc, 0));
+ }
+ case LL_IOC_SET_LEASE: {
+ struct ll_ioc_lease ioc;
- /* apply for lease */
- och = ll_lease_open(inode, file, fmode, 0);
- if (IS_ERR(och))
- RETURN(PTR_ERR(och));
+ if (copy_from_user(&ioc, (void __user *)arg, sizeof(ioc)))
+ RETURN(-EFAULT);
- rc = 0;
- mutex_lock(&lli->lli_och_mutex);
- if (fd->fd_lease_och == NULL) {
- fd->fd_lease_och = och;
- och = NULL;
- }
- mutex_unlock(&lli->lli_och_mutex);
- if (och != NULL) {
- /* impossible now that only excl is supported for now */
- ll_lease_close(och, inode, &lease_broken);
- rc = -EBUSY;
- }
- RETURN(rc);
+ RETURN(ll_file_set_lease(file, &ioc, arg));
}
case LL_IOC_GET_LEASE: {
struct ll_inode_info *lli = ll_i2info(inode);
RETURN(ll_file_futimes_3(file, &lfu));
}
case LL_IOC_LADVISE: {
- struct llapi_ladvise_hdr *ladvise_hdr;
+ struct llapi_ladvise_hdr *k_ladvise_hdr;
+ struct llapi_ladvise_hdr __user *u_ladvise_hdr;
int i;
int num_advise;
- int alloc_size = sizeof(*ladvise_hdr);
+ int alloc_size = sizeof(*k_ladvise_hdr);
rc = 0;
- OBD_ALLOC_PTR(ladvise_hdr);
- if (ladvise_hdr == NULL)
+ u_ladvise_hdr = (void __user *)arg;
+ OBD_ALLOC_PTR(k_ladvise_hdr);
+ if (k_ladvise_hdr == NULL)
RETURN(-ENOMEM);
- if (copy_from_user(ladvise_hdr,
- (const struct llapi_ladvise_hdr __user *)arg,
- alloc_size))
+ if (copy_from_user(k_ladvise_hdr, u_ladvise_hdr, alloc_size))
GOTO(out_ladvise, rc = -EFAULT);
- if (ladvise_hdr->lah_magic != LADVISE_MAGIC ||
- ladvise_hdr->lah_count < 1)
+ if (k_ladvise_hdr->lah_magic != LADVISE_MAGIC ||
+ k_ladvise_hdr->lah_count < 1)
GOTO(out_ladvise, rc = -EINVAL);
- num_advise = ladvise_hdr->lah_count;
+ num_advise = k_ladvise_hdr->lah_count;
if (num_advise >= LAH_COUNT_MAX)
GOTO(out_ladvise, rc = -EFBIG);
- OBD_FREE_PTR(ladvise_hdr);
- alloc_size = offsetof(typeof(*ladvise_hdr),
+ OBD_FREE_PTR(k_ladvise_hdr);
+ alloc_size = offsetof(typeof(*k_ladvise_hdr),
lah_advise[num_advise]);
- OBD_ALLOC(ladvise_hdr, alloc_size);
- if (ladvise_hdr == NULL)
+ OBD_ALLOC(k_ladvise_hdr, alloc_size);
+ if (k_ladvise_hdr == NULL)
RETURN(-ENOMEM);
/*
* TODO: submit multiple advices to one server in a single RPC
*/
- if (copy_from_user(ladvise_hdr,
- (const struct llapi_ladvise_hdr __user *)arg,
- alloc_size))
+ if (copy_from_user(k_ladvise_hdr, u_ladvise_hdr, alloc_size))
GOTO(out_ladvise, rc = -EFAULT);
for (i = 0; i < num_advise; i++) {
- rc = ll_ladvise(inode, file, ladvise_hdr->lah_flags,
- &ladvise_hdr->lah_advise[i]);
+ struct llapi_lu_ladvise *k_ladvise =
+ &k_ladvise_hdr->lah_advise[i];
+ struct llapi_lu_ladvise __user *u_ladvise =
+ &u_ladvise_hdr->lah_advise[i];
+
+ rc = ll_ladvise_sanity(inode, k_ladvise);
if (rc)
+ GOTO(out_ladvise, rc);
+
+ switch (k_ladvise->lla_advice) {
+ case LU_LADVISE_LOCKNOEXPAND:
+ rc = ll_lock_noexpand(file,
+ k_ladvise->lla_peradvice_flags);
+ GOTO(out_ladvise, rc);
+ case LU_LADVISE_LOCKAHEAD:
+
+ rc = ll_file_lock_ahead(file, k_ladvise);
+
+ if (rc < 0)
+ GOTO(out_ladvise, rc);
+
+ if (put_user(rc,
+ &u_ladvise->lla_lockahead_result))
+ GOTO(out_ladvise, rc = -EFAULT);
break;
+ default:
+ rc = ll_ladvise(inode, file,
+ k_ladvise_hdr->lah_flags,
+ k_ladvise);
+ if (rc)
+ GOTO(out_ladvise, rc);
+ break;
+ }
+
}
out_ladvise:
- OBD_FREE(ladvise_hdr, alloc_size);
+ OBD_FREE(k_ladvise_hdr, alloc_size);
RETURN(rc);
}
+ case LL_IOC_FLR_SET_MIRROR: {
+ /* mirror I/O must be direct to avoid polluting page cache
+ * by stale data. */
+ if (!(file->f_flags & O_DIRECT))
+ RETURN(-EINVAL);
+
+ fd->fd_designated_mirror = (__u32)arg;
+ RETURN(0);
+ }
case LL_IOC_FSGETXATTR:
RETURN(ll_ioctl_fsgetxattr(inode, cmd, arg));
case LL_IOC_FSSETXATTR:
RETURN(ll_ioctl_fssetxattr(inode, cmd, arg));
- default: {
- int err;
-
- if (LLIOC_STOP ==
- ll_iocontrol_call(inode, file, cmd, arg, &err))
- RETURN(err);
-
+ case BLKSSZGET:
+ RETURN(put_user(PAGE_SIZE, (int __user *)arg));
+ default:
RETURN(obd_iocontrol(cmd, ll_i2dtexp(inode), 0, NULL,
(void __user *)arg));
}
- }
}
#ifndef HAVE_FILE_LLSEEK_SIZE
RETURN(rc);
}
-int ll_migrate(struct inode *parent, struct file *file, int mdtidx,
- const char *name, int namelen)
+int ll_migrate(struct inode *parent, struct file *file, struct lmv_user_md *lum,
+ const char *name)
{
- struct dentry *dchild = NULL;
- struct inode *child_inode = NULL;
- struct md_op_data *op_data;
+ struct dentry *dchild = NULL;
+ struct inode *child_inode = NULL;
+ struct md_op_data *op_data;
struct ptlrpc_request *request = NULL;
struct obd_client_handle *och = NULL;
- struct qstr qstr;
- struct mdt_body *body;
- int rc;
- __u64 data_version = 0;
+ struct qstr qstr;
+ struct mdt_body *body;
+ __u64 data_version = 0;
+ size_t namelen = strlen(name);
+ int lumlen = lmv_user_md_size(lum->lum_stripe_count, lum->lum_magic);
+ int rc;
ENTRY;
- CDEBUG(D_VFSTRACE, "migrate %s under "DFID" to MDT%04x\n",
- name, PFID(ll_inode2fid(parent)), mdtidx);
+ CDEBUG(D_VFSTRACE, "migrate "DFID"/%s to MDT%04x stripe count %d\n",
+ PFID(ll_inode2fid(parent)), name,
+ lum->lum_stripe_offset, lum->lum_stripe_count);
- op_data = ll_prep_md_op_data(NULL, parent, NULL, name, namelen,
- 0, LUSTRE_OPC_ANY, NULL);
- if (IS_ERR(op_data))
- RETURN(PTR_ERR(op_data));
+ if (lum->lum_magic != cpu_to_le32(LMV_USER_MAGIC) &&
+ lum->lum_magic != cpu_to_le32(LMV_USER_MAGIC_SPECIFIC))
+ lustre_swab_lmv_user_md(lum);
/* Get child FID first */
qstr.hash = ll_full_name_hash(file_dentry(file), name, namelen);
qstr.name = name;
qstr.len = namelen;
dchild = d_lookup(file_dentry(file), &qstr);
- if (dchild != NULL) {
- if (dchild->d_inode != NULL)
+ if (dchild) {
+ if (dchild->d_inode)
child_inode = igrab(dchild->d_inode);
dput(dchild);
}
- if (child_inode == NULL) {
- rc = ll_get_fid_by_name(parent, name, namelen,
- &op_data->op_fid3, &child_inode);
- if (rc != 0)
- GOTO(out_free, rc);
+ if (!child_inode) {
+ rc = ll_get_fid_by_name(parent, name, namelen, NULL,
+ &child_inode);
+ if (rc)
+ RETURN(rc);
}
- if (child_inode == NULL)
- GOTO(out_free, rc = -EINVAL);
+ if (!child_inode)
+ RETURN(-ENOENT);
+
+ if (!(exp_connect_flags2(ll_i2sbi(parent)->ll_md_exp) &
+ OBD_CONNECT2_DIR_MIGRATE)) {
+ if (le32_to_cpu(lum->lum_stripe_count) > 1 ||
+ ll_i2info(child_inode)->lli_lsm_md) {
+ CERROR("%s: MDT doesn't support stripe directory "
+ "migration!\n",
+ ll_get_fsname(parent->i_sb, NULL, 0));
+ GOTO(out_iput, rc = -EOPNOTSUPP);
+ }
+ }
/*
* lfs migrate command needs to be blocked on the client
if (child_inode == parent->i_sb->s_root->d_inode)
GOTO(out_iput, rc = -EINVAL);
+ op_data = ll_prep_md_op_data(NULL, parent, NULL, name, namelen,
+ child_inode->i_mode, LUSTRE_OPC_ANY, NULL);
+ if (IS_ERR(op_data))
+ GOTO(out_iput, rc = PTR_ERR(op_data));
+
inode_lock(child_inode);
op_data->op_fid3 = *ll_inode2fid(child_inode);
if (!fid_is_sane(&op_data->op_fid3)) {
GOTO(out_unlock, rc = -EINVAL);
}
- rc = ll_get_mdt_idx_by_fid(ll_i2sbi(parent), &op_data->op_fid3);
- if (rc < 0)
- GOTO(out_unlock, rc);
+ op_data->op_cli_flags |= CLI_MIGRATE | CLI_SET_MEA;
+ op_data->op_data = lum;
+ op_data->op_data_size = lumlen;
- if (rc == mdtidx) {
- CDEBUG(D_INFO, "%s: "DFID" is already on MDT%04x\n", name,
- PFID(&op_data->op_fid3), mdtidx);
- GOTO(out_unlock, rc = 0);
- }
again:
if (S_ISREG(child_inode->i_mode)) {
och = ll_lease_open(child_inode, NULL, FMODE_WRITE, 0);
if (rc != 0)
GOTO(out_close, rc);
- op_data->op_handle = och->och_fh;
- op_data->op_data = och->och_mod;
+ op_data->op_open_handle = och->och_open_handle;
op_data->op_data_version = data_version;
op_data->op_lease_handle = och->och_lease_handle;
- op_data->op_bias |= MDS_RENAME_MIGRATE;
+ op_data->op_bias |= MDS_CLOSE_MIGRATE;
+
+ spin_lock(&och->och_mod->mod_open_req->rq_lock);
+ och->och_mod->mod_open_req->rq_replay = 0;
+ spin_unlock(&och->och_mod->mod_open_req->rq_lock);
}
- op_data->op_mds = mdtidx;
- op_data->op_cli_flags = CLI_MIGRATE;
- rc = md_rename(ll_i2sbi(parent)->ll_md_exp, op_data, name,
- namelen, name, namelen, &request);
+ rc = md_rename(ll_i2sbi(parent)->ll_md_exp, op_data, name, namelen,
+ name, namelen, &request);
if (rc == 0) {
LASSERT(request != NULL);
ll_update_times(request, parent);
/* If the server does release layout lock, then we cleanup
* the client och here, otherwise release it in out_close: */
- if (och != NULL &&
- body->mbo_valid & OBD_MD_CLOSE_INTENT_EXECED) {
+ if (och && body->mbo_valid & OBD_MD_CLOSE_INTENT_EXECED) {
obd_mod_put(och->och_mod);
md_clear_open_replay_data(ll_i2sbi(parent)->ll_md_exp,
och);
- och->och_fh.cookie = DEAD_HANDLE_MAGIC;
+ och->och_open_handle.cookie = DEAD_HANDLE_MAGIC;
OBD_FREE_PTR(och);
och = NULL;
}
goto again;
out_close:
- if (och != NULL) /* close the file */
+ if (och)
ll_lease_close(och, child_inode, NULL);
- if (rc == 0)
+ if (!rc)
clear_nlink(child_inode);
out_unlock:
inode_unlock(child_inode);
+ ll_finish_md_op_data(op_data);
out_iput:
iput(child_inode);
-out_free:
- ll_finish_md_op_data(op_data);
RETURN(rc);
}
return rc;
}
-static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
+static int ll_inode_revalidate(struct dentry *dentry, enum ldlm_intent_flags op)
{
- struct inode *inode = dentry->d_inode;
- struct ptlrpc_request *req = NULL;
- struct obd_export *exp;
- int rc = 0;
- ENTRY;
-
- LASSERT(inode != NULL);
+ struct inode *inode = dentry->d_inode;
+ struct obd_export *exp = ll_i2mdexp(inode);
+ struct lookup_intent oit = {
+ .it_op = op,
+ };
+ struct ptlrpc_request *req = NULL;
+ struct md_op_data *op_data;
+ int rc = 0;
+ ENTRY;
CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p),name=%s\n",
PFID(ll_inode2fid(inode)), inode, dentry->d_name.name);
- exp = ll_i2mdexp(inode);
-
- /* XXX: Enable OBD_CONNECT_ATTRFID to reduce unnecessary getattr RPC.
- * But under CMD case, it caused some lock issues, should be fixed
- * with new CMD ibits lock. See bug 12718 */
- if (exp_connect_flags(exp) & OBD_CONNECT_ATTRFID) {
- struct lookup_intent oit = { .it_op = IT_GETATTR };
- struct md_op_data *op_data;
-
- if (ibits == MDS_INODELOCK_LOOKUP)
- oit.it_op = IT_LOOKUP;
-
- /* Call getattr by fid, so do not provide name at all. */
- op_data = ll_prep_md_op_data(NULL, dentry->d_inode,
- dentry->d_inode, NULL, 0, 0,
- LUSTRE_OPC_ANY, NULL);
- if (IS_ERR(op_data))
- RETURN(PTR_ERR(op_data));
-
- rc = md_intent_lock(exp, op_data, &oit, &req,
- &ll_md_blocking_ast, 0);
- ll_finish_md_op_data(op_data);
- if (rc < 0) {
- rc = ll_inode_revalidate_fini(inode, rc);
- GOTO (out, rc);
- }
-
- rc = ll_revalidate_it_finish(req, &oit, dentry);
- if (rc != 0) {
- ll_intent_release(&oit);
- GOTO(out, rc);
- }
-
- /* Unlinked? Unhash dentry, so it is not picked up later by
- do_lookup() -> ll_revalidate_it(). We cannot use d_drop
- here to preserve get_cwd functionality on 2.6.
- Bug 10503 */
- if (!dentry->d_inode->i_nlink) {
- ll_lock_dcache(inode);
- d_lustre_invalidate(dentry, 0);
- ll_unlock_dcache(inode);
- }
-
- ll_lookup_finish_locks(&oit, dentry);
- } else if (!ll_have_md_lock(dentry->d_inode, &ibits, LCK_MINMODE)) {
- struct ll_sb_info *sbi = ll_i2sbi(dentry->d_inode);
- u64 valid = OBD_MD_FLGETATTR;
- struct md_op_data *op_data;
- int ealen = 0;
+ /* Call getattr by fid, so do not provide name at all. */
+ op_data = ll_prep_md_op_data(NULL, inode, inode, NULL, 0, 0,
+ LUSTRE_OPC_ANY, NULL);
+ if (IS_ERR(op_data))
+ RETURN(PTR_ERR(op_data));
- if (S_ISREG(inode->i_mode)) {
- rc = ll_get_default_mdsize(sbi, &ealen);
- if (rc)
- RETURN(rc);
- valid |= OBD_MD_FLEASIZE | OBD_MD_FLMODEASIZE;
- }
+ rc = md_intent_lock(exp, op_data, &oit, &req, &ll_md_blocking_ast, 0);
+ ll_finish_md_op_data(op_data);
+ if (rc < 0) {
+ rc = ll_inode_revalidate_fini(inode, rc);
+ GOTO(out, rc);
+ }
- op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
- 0, ealen, LUSTRE_OPC_ANY,
- NULL);
- if (IS_ERR(op_data))
- RETURN(PTR_ERR(op_data));
+ rc = ll_revalidate_it_finish(req, &oit, dentry);
+ if (rc != 0) {
+ ll_intent_release(&oit);
+ GOTO(out, rc);
+ }
- op_data->op_valid = valid;
- rc = md_getattr(sbi->ll_md_exp, op_data, &req);
- ll_finish_md_op_data(op_data);
- if (rc) {
- rc = ll_inode_revalidate_fini(inode, rc);
- RETURN(rc);
- }
+ /* Unlinked? Unhash dentry, so it is not picked up later by
+ * do_lookup() -> ll_revalidate_it(). We cannot use d_drop
+ * here to preserve get_cwd functionality on 2.6.
+ * Bug 10503 */
+ if (!dentry->d_inode->i_nlink) {
+ ll_lock_dcache(inode);
+ d_lustre_invalidate(dentry, 0);
+ ll_unlock_dcache(inode);
+ }
- rc = ll_prep_inode(&inode, req, NULL, NULL);
- }
+ ll_lookup_finish_locks(&oit, dentry);
out:
- ptlrpc_req_finished(req);
- return rc;
+ ptlrpc_req_finished(req);
+
+ return rc;
}
static int ll_merge_md_attr(struct inode *inode)
{
+ struct ll_inode_info *lli = ll_i2info(inode);
struct cl_attr attr = { 0 };
int rc;
- LASSERT(ll_i2info(inode)->lli_lsm_md != NULL);
+ LASSERT(lli->lli_lsm_md != NULL);
+ down_read(&lli->lli_lsm_sem);
rc = md_merge_attr(ll_i2mdexp(inode), ll_i2info(inode)->lli_lsm_md,
&attr, ll_md_blocking_ast);
+ up_read(&lli->lli_lsm_sem);
if (rc != 0)
RETURN(rc);
RETURN(0);
}
-static int
-ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
-{
- struct inode *inode = dentry->d_inode;
- int rc;
- ENTRY;
-
- rc = __ll_inode_revalidate(dentry, ibits);
- if (rc != 0)
- RETURN(rc);
-
- /* if object isn't regular file, don't validate size */
- if (!S_ISREG(inode->i_mode)) {
- if (S_ISDIR(inode->i_mode) &&
- ll_i2info(inode)->lli_lsm_md != NULL) {
- rc = ll_merge_md_attr(inode);
- if (rc != 0)
- RETURN(rc);
- }
-
- LTIME_S(inode->i_atime) = ll_i2info(inode)->lli_atime;
- LTIME_S(inode->i_mtime) = ll_i2info(inode)->lli_mtime;
- LTIME_S(inode->i_ctime) = ll_i2info(inode)->lli_ctime;
- } else {
- /* In case of restore, the MDT has the right size and has
- * already send it back without granting the layout lock,
- * inode is up-to-date so glimpse is useless.
- * Also to glimpse we need the layout, in case of a running
- * restore the MDT holds the layout lock so the glimpse will
- * block up to the end of restore (getattr will block)
- */
- if (!ll_file_test_flag(ll_i2info(inode), LLIF_FILE_RESTORING))
- rc = ll_glimpse_size(inode);
- }
- RETURN(rc);
-}
-
static inline dev_t ll_compat_encode_dev(dev_t dev)
{
/* The compat_sys_*stat*() syscalls will fail unless the
return MKDEV(MAJOR(dev) & 0xff, MINOR(dev) & 0xff);
}
+#ifdef HAVE_INODEOPS_ENHANCED_GETATTR
+int ll_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
+{
+ struct dentry *de = path->dentry;
+#else
int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
{
- struct inode *inode = de->d_inode;
- struct ll_sb_info *sbi = ll_i2sbi(inode);
- struct ll_inode_info *lli = ll_i2info(inode);
- int res = 0;
+#endif
+ struct inode *inode = de->d_inode;
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct ll_inode_info *lli = ll_i2info(inode);
+ int rc;
+
+ ll_stats_ops_tally(sbi, LPROC_LL_GETATTR, 1);
- res = ll_inode_revalidate(de, MDS_INODELOCK_UPDATE |
- MDS_INODELOCK_LOOKUP);
- ll_stats_ops_tally(sbi, LPROC_LL_GETATTR, 1);
+ rc = ll_inode_revalidate(de, IT_GETATTR);
+ if (rc < 0)
+ RETURN(rc);
+
+ if (S_ISREG(inode->i_mode)) {
+ /* In case of restore, the MDT has the right size and has
+ * already send it back without granting the layout lock,
+ * inode is up-to-date so glimpse is useless.
+ * Also to glimpse we need the layout, in case of a running
+ * restore the MDT holds the layout lock so the glimpse will
+ * block up to the end of restore (getattr will block)
+ */
+ if (!ll_file_test_flag(lli, LLIF_FILE_RESTORING)) {
+ rc = ll_glimpse_size(inode);
+ if (rc < 0)
+ RETURN(rc);
+ }
+ } else {
+ /* If object isn't regular a file then don't validate size. */
+ if (S_ISDIR(inode->i_mode) &&
+ lli->lli_lsm_md != NULL) {
+ rc = ll_merge_md_attr(inode);
+ if (rc < 0)
+ RETURN(rc);
+ }
- if (res)
- return res;
+ LTIME_S(inode->i_atime) = lli->lli_atime;
+ LTIME_S(inode->i_mtime) = lli->lli_mtime;
+ LTIME_S(inode->i_ctime) = lli->lli_ctime;
+ }
OBD_FAIL_TIMEOUT(OBD_FAIL_GETATTR_DELAY, 30);
RETURN(acl);
}
+#ifdef HAVE_IOP_SET_ACL
+#ifdef CONFIG_FS_POSIX_ACL
+int ll_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+{
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct ptlrpc_request *req = NULL;
+ const char *name = NULL;
+ char *value = NULL;
+ size_t value_size = 0;
+ int rc = 0;
+ ENTRY;
+
+ switch (type) {
+ case ACL_TYPE_ACCESS:
+ name = XATTR_NAME_POSIX_ACL_ACCESS;
+ if (acl)
+ rc = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+ break;
+
+ case ACL_TYPE_DEFAULT:
+ name = XATTR_NAME_POSIX_ACL_DEFAULT;
+ if (!S_ISDIR(inode->i_mode))
+ rc = acl ? -EACCES : 0;
+ break;
+
+ default:
+ rc = -EINVAL;
+ break;
+ }
+ if (rc)
+ return rc;
+
+ if (acl) {
+ value_size = posix_acl_xattr_size(acl->a_count);
+ value = kmalloc(value_size, GFP_NOFS);
+ if (value == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ rc = posix_acl_to_xattr(&init_user_ns, acl, value, value_size);
+ if (rc < 0)
+ GOTO(out_value, rc);
+ }
+
+ rc = md_setxattr(sbi->ll_md_exp, ll_inode2fid(inode),
+ value ? OBD_MD_FLXATTR : OBD_MD_FLXATTRRM,
+ name, value, value_size, 0, 0, &req);
+
+ ptlrpc_req_finished(req);
+out_value:
+ kfree(value);
+out:
+ if (rc)
+ forget_cached_acl(inode, type);
+ else
+ set_cached_acl(inode, type, acl);
+ RETURN(rc);
+}
+#endif /* CONFIG_FS_POSIX_ACL */
+#endif /* HAVE_IOP_SET_ACL */
+
#ifndef HAVE_GENERIC_PERMISSION_2ARGS
static int
# ifdef HAVE_GENERIC_PERMISSION_4ARGS
* need to do it before permission check. */
if (inode == inode->i_sb->s_root->d_inode) {
- rc = __ll_inode_revalidate(inode->i_sb->s_root,
- MDS_INODELOCK_LOOKUP);
+ rc = ll_inode_revalidate(inode->i_sb->s_root, IT_LOOKUP);
if (rc)
RETURN(rc);
}
#ifdef HAVE_IOP_GET_ACL
.get_acl = ll_get_acl,
#endif
+#ifdef HAVE_IOP_SET_ACL
+ .set_acl = ll_set_acl,
+#endif
};
-/* dynamic ioctl number support routins */
-static struct llioc_ctl_data {
- struct rw_semaphore ioc_sem;
- struct list_head ioc_head;
-} llioc = {
- __RWSEM_INITIALIZER(llioc.ioc_sem),
- LIST_HEAD_INIT(llioc.ioc_head)
-};
-
-
-struct llioc_data {
- struct list_head iocd_list;
- unsigned int iocd_size;
- llioc_callback_t iocd_cb;
- unsigned int iocd_count;
- unsigned int iocd_cmd[0];
-};
-
-void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd)
-{
- unsigned int size;
- struct llioc_data *in_data = NULL;
- ENTRY;
-
- if (cb == NULL || cmd == NULL ||
- count > LLIOC_MAX_CMD || count < 0)
- RETURN(NULL);
-
- size = sizeof(*in_data) + count * sizeof(unsigned int);
- OBD_ALLOC(in_data, size);
- if (in_data == NULL)
- RETURN(NULL);
-
- memset(in_data, 0, sizeof(*in_data));
- in_data->iocd_size = size;
- in_data->iocd_cb = cb;
- in_data->iocd_count = count;
- memcpy(in_data->iocd_cmd, cmd, sizeof(unsigned int) * count);
-
- down_write(&llioc.ioc_sem);
- list_add_tail(&in_data->iocd_list, &llioc.ioc_head);
- up_write(&llioc.ioc_sem);
-
- RETURN(in_data);
-}
-
-void ll_iocontrol_unregister(void *magic)
-{
- struct llioc_data *tmp;
-
- if (magic == NULL)
- return;
-
- down_write(&llioc.ioc_sem);
- list_for_each_entry(tmp, &llioc.ioc_head, iocd_list) {
- if (tmp == magic) {
- unsigned int size = tmp->iocd_size;
-
- list_del(&tmp->iocd_list);
- up_write(&llioc.ioc_sem);
-
- OBD_FREE(tmp, size);
- return;
- }
- }
- up_write(&llioc.ioc_sem);
-
- CWARN("didn't find iocontrol register block with magic: %p\n", magic);
-}
-
-EXPORT_SYMBOL(ll_iocontrol_register);
-EXPORT_SYMBOL(ll_iocontrol_unregister);
-
-static enum llioc_iter
-ll_iocontrol_call(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg, int *rcp)
-{
- enum llioc_iter ret = LLIOC_CONT;
- struct llioc_data *data;
- int rc = -EINVAL, i;
-
- down_read(&llioc.ioc_sem);
- list_for_each_entry(data, &llioc.ioc_head, iocd_list) {
- for (i = 0; i < data->iocd_count; i++) {
- if (cmd != data->iocd_cmd[i])
- continue;
-
- ret = data->iocd_cb(inode, file, cmd, arg, data, &rc);
- break;
- }
-
- if (ret == LLIOC_STOP)
- break;
- }
- up_read(&llioc.ioc_sem);
-
- if (rcp)
- *rcp = rc;
- return ret;
-}
-
int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf)
{
struct ll_inode_info *lli = ll_i2info(inode);
{
struct ll_sb_info *sbi = ll_i2sbi(inode);
struct ptlrpc_request *req;
- struct mdt_body *body;
void *lvbdata;
void *lmm;
int lmmsize;
* layout here. Please note that we can't use the LVB buffer in
* completion AST because it doesn't have a large enough buffer */
rc = ll_get_default_mdsize(sbi, &lmmsize);
- if (rc == 0)
- rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode),
- OBD_MD_FLXATTR, XATTR_NAME_LOV, NULL, 0,
- lmmsize, 0, &req);
if (rc < 0)
RETURN(rc);
- body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
- if (body == NULL)
- GOTO(out, rc = -EPROTO);
+ rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode), OBD_MD_FLXATTR,
+ XATTR_NAME_LOV, lmmsize, &req);
+ if (rc < 0)
+ RETURN(rc);
- lmmsize = body->mbo_eadatasize;
+ lmmsize = rc;
+ rc = 0;
if (lmmsize == 0) /* empty layout */
GOTO(out, rc = 0);
* Issue layout intent RPC indicating where in a file an IO is about to write.
*
* \param[in] inode file inode.
- * \param[in] start start offset of fille in bytes where an IO is about to
- * write.
- * \param[in] end exclusive end offset in bytes of the write range.
+ * \param[in] ext write range with start offset of fille in bytes where
+ * an IO is about to write, and exclusive end offset in
+ * bytes.
*
* \retval 0 on success
* \retval < 0 error code
*/
-int ll_layout_write_intent(struct inode *inode, __u64 start, __u64 end)
+int ll_layout_write_intent(struct inode *inode, enum layout_intent_opc opc,
+ struct lu_extent *ext)
{
struct layout_intent intent = {
- .li_opc = LAYOUT_INTENT_WRITE,
- .li_start = start,
- .li_end = end,
+ .li_opc = opc,
+ .li_extent.e_start = ext->e_start,
+ .li_extent.e_end = ext->e_end,
};
int rc;
ENTRY;