struct mdd_object_user {
struct list_head mou_list; /**< linked off mod_users */
- int mou_flags; /**< open mode by client */
+ u64 mou_open_flags; /**< open mode by client */
__u64 mou_uidgid; /**< uid_gid on client */
int mou_opencount; /**< # opened */
+ ktime_t mou_deniednext; /**< time of next access denied
+ * notfication
+ */
};
static int mdd_xattr_get(const struct lu_env *env,
static int mdd_changelog_data_store_by_fid(const struct lu_env *env,
struct mdd_device *mdd,
enum changelog_rec_type type,
- int flags, const struct lu_fid *fid,
+ enum changelog_rec_flags clf_flags,
+ const struct lu_fid *fid,
const char *xattr_name,
struct thandle *handle);
static inline bool has_prefix(const char *str, const char *prefix);
-static fmode_t flags_helper(int flags)
+static u32 flags_helper(u64 open_flags)
{
- fmode_t mflags = 0;
+ u32 open_mode = 0;
- if (flags & MDS_FMODE_EXEC) {
- mflags = MDS_FMODE_EXEC;
+ if (open_flags & MDS_FMODE_EXEC) {
+ open_mode = MDS_FMODE_EXEC;
} else {
- if (flags & FMODE_READ)
- mflags = FMODE_READ;
- if (flags & (FMODE_WRITE | MDS_OPEN_TRUNC | MDS_OPEN_APPEND))
- mflags |= FMODE_WRITE;
+ if (open_flags & MDS_FMODE_READ)
+ open_mode = MDS_FMODE_READ;
+ if (open_flags &
+ (MDS_FMODE_WRITE | MDS_OPEN_TRUNC | MDS_OPEN_APPEND))
+ open_mode |= MDS_FMODE_WRITE;
}
- return mflags;
+ return open_mode;
}
/** Allocate/init a user and its sub-structures.
* \retval mou [OUT] success valid structure
* \retval mou [OUT]
*/
-static struct mdd_object_user *mdd_obj_user_alloc(int flags,
+static struct mdd_object_user *mdd_obj_user_alloc(u64 open_flags,
uid_t uid, gid_t gid)
{
struct mdd_object_user *mou;
if (mou == NULL)
RETURN(ERR_PTR(-ENOMEM));
- mou->mou_flags = flags;
+ mou->mou_open_flags = open_flags;
mou->mou_uidgid = ((__u64)uid << 32) | gid;
mou->mou_opencount = 0;
+ mou->mou_deniednext = ktime_set(0, 0);
RETURN(mou);
}
*/
static
struct mdd_object_user *mdd_obj_user_find(struct mdd_object *mdd_obj,
- uid_t uid, gid_t gid, int flags)
+ uid_t uid, gid_t gid,
+ u64 open_flags)
{
struct mdd_object_user *mou;
__u64 uidgid;
uidgid = ((__u64)uid << 32) | gid;
list_for_each_entry(mou, &mdd_obj->mod_users, mou_list) {
if (mou->mou_uidgid == uidgid &&
- flags_helper(mou->mou_flags) == flags_helper(flags))
+ flags_helper(mou->mou_open_flags) ==
+ flags_helper(open_flags))
RETURN(mou);
}
RETURN(NULL);
* \retval -ve failure
*/
static int mdd_obj_user_add(struct mdd_object *mdd_obj,
- struct mdd_object_user *mou)
+ struct mdd_object_user *mou,
+ bool denied)
{
+ struct mdd_device *mdd = mdd_obj2mdd_dev(mdd_obj);
struct mdd_object_user *tmp;
__u32 uid = mou->mou_uidgid >> 32;
__u32 gid = mou->mou_uidgid & ((1UL << 32) - 1);
ENTRY;
-
- tmp = mdd_obj_user_find(mdd_obj, uid,
- gid, mou->mou_flags);
+ tmp = mdd_obj_user_find(mdd_obj, uid, gid, mou->mou_open_flags);
if (tmp != NULL)
RETURN(-EEXIST);
list_add_tail(&mou->mou_list, &mdd_obj->mod_users);
- mou->mou_opencount++;
+ if (denied)
+ /* next 'access denied' notification cannot happen before
+ * mou_deniednext
+ */
+ mou->mou_deniednext =
+ ktime_add(ktime_get(),
+ ktime_set(mdd->mdd_cl.mc_deniednext, 0));
+ else
+ mou->mou_opencount++;
RETURN(0);
}
const char *name)
{
struct mdd_object *mdd_obj = md2mdd_obj(obj);
- struct md_device *md_dev = lu2md_dev(mdd2lu_dev(mdo2mdd(obj)));
+ struct mdd_device *mdd;
int rc;
ENTRY;
rc = mdo_xattr_get(env, mdd_obj, buf, name);
mdd_read_unlock(env, mdd_obj);
+ mdd = mdo2mdd(obj);
+
/* record only getting user xattrs and acls */
if (rc >= 0 &&
+ mdd_changelog_enabled(env, mdd, CL_GETXATTR) &&
(has_prefix(name, XATTR_USER_PREFIX) ||
has_prefix(name, XATTR_NAME_POSIX_ACL_ACCESS) ||
has_prefix(name, XATTR_NAME_POSIX_ACL_DEFAULT))) {
struct thandle *handle;
- struct mdd_device *mdd = lu2mdd_dev(&md_dev->md_lu_dev);
int rc2;
- /* Not recording */
- if (!(mdd->mdd_cl.mc_flags & CLM_ON))
- RETURN(rc);
- if (!(mdd->mdd_cl.mc_mask & (1 << CL_GETXATTR)))
- RETURN(rc);
-
LASSERT(mdo2fid(mdd_obj) != NULL);
handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
RETURN(PTR_ERR(handle));
- rc2 = mdd_declare_changelog_store(env, mdd, NULL, NULL, handle);
+ rc2 = mdd_declare_changelog_store(env, mdd, CL_GETXATTR, NULL,
+ NULL, handle);
if (rc2)
GOTO(stop, rc2);
static int mdd_changelog_data_store_by_fid(const struct lu_env *env,
struct mdd_device *mdd,
enum changelog_rec_type type,
- int flags, const struct lu_fid *fid,
+ enum changelog_rec_flags clf_flags,
+ const struct lu_fid *fid,
const char *xattr_name,
struct thandle *handle)
{
const struct lu_ucred *uc = lu_ucred(env);
+ enum changelog_rec_extra_flags xflags = CLFE_INVALID;
struct llog_changelog_rec *rec;
struct lu_buf *buf;
int reclen;
- int xflags = CLFE_INVALID;
int rc;
- flags = (flags & CLF_FLAGMASK) | CLF_VERSION | CLF_EXTRA_FLAGS;
+ clf_flags = (clf_flags & CLF_FLAGMASK) | CLF_VERSION | CLF_EXTRA_FLAGS;
if (uc) {
if (uc->uc_jobid[0] != '\0')
- flags |= CLF_JOBID;
+ clf_flags |= CLF_JOBID;
xflags |= CLFE_UIDGID;
xflags |= CLFE_NID;
}
- if (type == CL_OPEN)
+ if (type == CL_OPEN || type == CL_DN_OPEN)
xflags |= CLFE_OPEN;
if (type == CL_SETXATTR || type == CL_GETXATTR)
xflags |= CLFE_XATTR;
reclen = llog_data_len(LLOG_CHANGELOG_HDR_SZ +
- changelog_rec_offset(flags & CLF_SUPPORTED,
+ changelog_rec_offset(clf_flags & CLF_SUPPORTED,
xflags & CLFE_SUPPORTED));
buf = lu_buf_check_and_alloc(&mdd_env_info(env)->mti_big_buf, reclen);
if (buf->lb_buf == NULL)
rec = buf->lb_buf;
rec->cr_hdr.lrh_len = reclen;
- rec->cr.cr_flags = flags;
+ rec->cr.cr_flags = clf_flags;
rec->cr.cr_type = (__u32)type;
rec->cr.cr_tfid = *fid;
rec->cr.cr_namelen = 0;
- if (flags & CLF_JOBID)
+ if (clf_flags & CLF_JOBID)
mdd_changelog_rec_ext_jobid(&rec->cr, uc->uc_jobid);
- if (flags & CLF_EXTRA_FLAGS) {
+ if (clf_flags & CLF_EXTRA_FLAGS) {
mdd_changelog_rec_ext_extra_flags(&rec->cr, xflags);
if (xflags & CLFE_UIDGID)
mdd_changelog_rec_extra_uidgid(&rec->cr,
if (xflags & CLFE_NID)
mdd_changelog_rec_extra_nid(&rec->cr, uc->uc_nid);
if (xflags & CLFE_OPEN)
- mdd_changelog_rec_extra_omode(&rec->cr, flags);
+ mdd_changelog_rec_extra_omode(&rec->cr, clf_flags);
if (xflags & CLFE_XATTR) {
if (xattr_name == NULL)
RETURN(-EINVAL);
* \param handle - transaction handle
*/
int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
- enum changelog_rec_type type, int flags,
+ enum changelog_rec_type type,
+ enum changelog_rec_flags clf_flags,
struct mdd_object *mdd_obj, struct thandle *handle)
{
int rc;
LASSERT(mdd_obj != NULL);
LASSERT(handle != NULL);
- /* Not recording */
- if (!(mdd->mdd_cl.mc_flags & CLM_ON))
- RETURN(0);
- if ((mdd->mdd_cl.mc_mask & (1 << type)) == 0)
+ if (!mdd_changelog_enabled(env, mdd, type))
RETURN(0);
if (mdd_is_volatile_obj(mdd_obj))
RETURN(0);
}
- rc = mdd_changelog_data_store_by_fid(env, mdd, type, flags,
+ rc = mdd_changelog_data_store_by_fid(env, mdd, type, clf_flags,
mdo2fid(mdd_obj), NULL, handle);
if (rc == 0)
mdd_obj->mod_cltime = ktime_get();
RETURN(rc);
}
-static int mdd_changelog_data_store_xattr(const struct lu_env *env,
- struct mdd_device *mdd,
- enum changelog_rec_type type,
- int flags, struct mdd_object *mdd_obj,
- const char *xattr_name,
- struct thandle *handle)
+int mdd_changelog_data_store_xattr(const struct lu_env *env,
+ struct mdd_device *mdd,
+ enum changelog_rec_type type,
+ enum changelog_rec_flags clf_flags,
+ struct mdd_object *mdd_obj,
+ const char *xattr_name,
+ struct thandle *handle)
{
- int rc;
+ int rc;
LASSERT(mdd_obj != NULL);
LASSERT(handle != NULL);
- /* Not recording */
- if (!(mdd->mdd_cl.mc_flags & CLM_ON))
- RETURN(0);
- if ((mdd->mdd_cl.mc_mask & (1 << type)) == 0)
+ if (!mdd_changelog_enabled(env, mdd, type))
RETURN(0);
if (mdd_is_volatile_obj(mdd_obj))
RETURN(0);
}
- rc = mdd_changelog_data_store_by_fid(env, mdd, type, flags,
+ rc = mdd_changelog_data_store_by_fid(env, mdd, type, clf_flags,
mdo2fid(mdd_obj), xattr_name,
handle);
if (rc == 0)
RETURN(rc);
}
+/* only the bottom CLF_FLAGSHIFT bits of @flags are stored in the record,
+ * except for open flags have a dedicated record to store 32 bits of flags */
static int mdd_changelog(const struct lu_env *env, enum changelog_rec_type type,
- int flags, struct md_device *m, const struct lu_fid *fid)
+ enum changelog_rec_flags clf_flags,
+ struct md_device *m, const struct lu_fid *fid)
{
struct thandle *handle;
struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
int rc;
ENTRY;
- /* Not recording */
- if (!(mdd->mdd_cl.mc_flags & CLM_ON))
- RETURN(0);
- if (!(mdd->mdd_cl.mc_mask & (1 << type)))
- RETURN(0);
-
LASSERT(fid != NULL);
+ /* We'll check this again below, but we check now before we
+ * start a transaction. */
+ if (!mdd_changelog_enabled(env, mdd, type))
+ RETURN(0);
+
handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
RETURN(PTR_ERR(handle));
- rc = mdd_declare_changelog_store(env, mdd, NULL, NULL, handle);
+ rc = mdd_declare_changelog_store(env, mdd, type, NULL, NULL, handle);
if (rc)
GOTO(stop, rc);
if (rc)
GOTO(stop, rc);
- rc = mdd_changelog_data_store_by_fid(env, mdd, type, flags,
+ rc = mdd_changelog_data_store_by_fid(env, mdd, type, clf_flags,
fid, NULL, handle);
stop:
/* The record type is the lowest non-masked set bit */
type = __ffs(bits);
- /* FYI we only store the first CLF_FLAGMASK bits of la_valid */
- return mdd_changelog_data_store(env, mdd, type, (int)valid,
+ /* XXX: we only store the low CLF_FLAGMASK bits of la_valid */
+ return mdd_changelog_data_store(env, mdd, type, valid,
md2mdd_obj(obj), handle);
}
}
#endif
- rc = mdd_declare_changelog_store(env, mdd, NULL, NULL, handle);
+ rc = mdd_declare_changelog_store(env, mdd, CL_SETXATTR, NULL, NULL,
+ handle);
return rc;
}
return false;
}
+static inline __u64 mdd_lmm_dom_size(void *buf)
+{
+ struct lov_mds_md *lmm = buf;
+ struct lov_comp_md_v1 *comp_v1;
+ struct lov_mds_md *v1;
+ __u32 off;
+
+ if (lmm == NULL)
+ return 0;
+
+ if (le32_to_cpu(lmm->lmm_magic) != LOV_MAGIC_COMP_V1)
+ return 0;
+
+ comp_v1 = (struct lov_comp_md_v1 *)lmm;
+ off = le32_to_cpu(comp_v1->lcm_entries[0].lcme_offset);
+ v1 = (struct lov_mds_md *)((char *)comp_v1 + off);
+
+ /* DoM entry is the first entry always */
+ if (lov_pattern(le32_to_cpu(v1->lmm_pattern)) == LOV_PATTERN_MDT)
+ return le64_to_cpu(comp_v1->lcm_entries[0].lcme_extent.e_end);
+
+ return 0;
+}
+
/* set attr and LOV EA at once, return updated attr */
int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
const struct md_attr *ma)
la->la_mtime, la->la_ctime);
mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
+
+ /* LU-10509: setattr of LA_SIZE should be skipped case of DOM,
+ * otherwise following truncate will do nothing and truncated
+ * data may be read again. This is a quick fix until LU-11033
+ * will be resolved.
+ */
+ if (la_copy->la_valid & LA_SIZE) {
+ struct lu_buf *lov_buf = mdd_buf_get(env, NULL, 0);
+
+ rc = mdd_stripe_get(env, mdd_obj, lov_buf, XATTR_NAME_LOV);
+ if (rc) {
+ rc = 0;
+ } else {
+ if (mdd_lmm_dom_size(lov_buf->lb_buf) > 0)
+ la_copy->la_valid &= ~LA_SIZE;
+ lu_buf_free(lov_buf);
+ }
+ }
+
if (la_copy->la_valid) {
rc = mdd_attr_set_internal(env, mdd_obj, la_copy, handle, 1);
(uc->uc_fsuid != attr->la_uid) &&
!md_capable(uc, CFS_CAP_FOWNER))
RETURN(-EPERM);
- } else {
- if ((uc->uc_fsuid != attr->la_uid) &&
- !md_capable(uc, CFS_CAP_FOWNER))
- RETURN(-EPERM);
+ } else if (strcmp(name, XATTR_NAME_SOM) != 0 &&
+ (uc->uc_fsuid != attr->la_uid) &&
+ !md_capable(uc, CFS_CAP_FOWNER)) {
+ RETURN(-EPERM);
}
RETURN(0);
if (strcmp(XATTR_NAME_HSM, xattr_name) == 0)
return CL_HSM;
+ /* Avoid logging SOM xattr for every file */
+ if (strcmp(XATTR_NAME_SOM, xattr_name) == 0)
+ return CL_NONE;
+
if (has_prefix(xattr_name, XATTR_USER_PREFIX) ||
has_prefix(xattr_name, XATTR_NAME_POSIX_ACL_ACCESS) ||
has_prefix(xattr_name, XATTR_NAME_POSIX_ACL_DEFAULT) ||
has_prefix(xattr_name, XATTR_SECURITY_PREFIX))
return CL_SETXATTR;
- return -1;
+ return CL_NONE;
}
static int mdd_declare_xattr_set(const struct lu_env *env,
const char *name,
int fl, struct thandle *handle)
{
- int rc;
+ enum changelog_rec_type type;
+ int rc;
rc = mdo_declare_xattr_set(env, obj, buf, name, fl, handle);
if (rc)
return rc;
- if (mdd_xattr_changelog_type(env, mdd, name) < 0)
+ type = mdd_xattr_changelog_type(env, mdd, name);
+ if (type < 0)
return 0; /* no changelog to store */
- return mdd_declare_changelog_store(env, mdd, NULL, NULL, handle);
+ return mdd_declare_changelog_store(env, mdd, type, NULL, NULL, handle);
}
/*
static int mdd_hsm_update_locked(const struct lu_env *env,
struct md_object *obj,
const struct lu_buf *buf,
- struct thandle *handle, int *cl_flags)
+ struct thandle *handle,
+ enum changelog_rec_flags *clf_flags)
{
struct mdd_thread_info *info = mdd_env_info(env);
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
- struct lu_buf *current_buf;
- struct md_hsm *current_mh;
- struct md_hsm *new_mh;
- int rc;
- ENTRY;
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ struct lu_buf *current_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);
/* Flags differ, set flags for the changelog that will be added */
if (current_mh->mh_flags != new_mh->mh_flags) {
- hsm_set_cl_event(cl_flags, HE_STATE);
+ hsm_set_cl_event(clf_flags, HE_STATE);
if (new_mh->mh_flags & HS_DIRTY)
- hsm_set_cl_flags(cl_flags, CLF_HSM_DIRTY);
+ hsm_set_cl_flags(clf_flags, CLF_HSM_DIRTY);
}
OBD_FREE_PTR(new_mh);
/* get EA of victim file */
memset(buf_vic, 0, sizeof(*buf_vic));
- rc = mdd_get_lov_ea(env, vic, buf_vic);
+ rc = mdd_stripe_get(env, vic, buf_vic, XATTR_NAME_LOV);
if (rc < 0) {
if (rc == -ENODATA)
rc = 0;
/* save EA of target file for restore */
memset(buf, 0, sizeof(*buf));
- rc = mdd_get_lov_ea(env, obj, buf);
+ rc = mdd_stripe_get(env, obj, buf, XATTR_NAME_LOV);
if (rc < 0)
GOTO(out, rc);
/* get EA of mirrored file */
memset(buf_save, 0, sizeof(*buf));
- rc = mdd_get_lov_ea(env, obj, buf_save);
+ rc = mdd_stripe_get(env, obj, buf_save, XATTR_NAME_LOV);
if (rc < 0)
GOTO(out, rc);
const struct lu_buf *buf, const char *name,
int fl)
{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
- struct lu_attr *attr = MDD_ENV_VAR(env, cattr);
- struct mdd_device *mdd = mdo2mdd(obj);
- struct thandle *handle;
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ struct lu_attr *attr = MDD_ENV_VAR(env, cattr);
+ struct mdd_device *mdd = mdo2mdd(obj);
+ struct thandle *handle;
enum changelog_rec_type cl_type;
- int cl_flags = 0;
- int rc;
+ enum changelog_rec_flags clf_flags = 0;
+ int rc;
ENTRY;
rc = mdd_la_get(env, mdd_obj, attr);
RETURN(rc);
}
+ if (strcmp(name, XATTR_NAME_LMV) == 0) {
+ rc = mdd_dir_layout_shrink(env, obj, buf);
+ RETURN(rc);
+ }
+
if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0 ||
strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0) {
struct posix_acl *acl;
mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
if (strcmp(XATTR_NAME_HSM, name) == 0) {
- rc = mdd_hsm_update_locked(env, obj, buf, handle, &cl_flags);
+ rc = mdd_hsm_update_locked(env, obj, buf, handle, &clf_flags);
if (rc) {
mdd_write_unlock(env, mdd_obj);
GOTO(stop, rc);
if (cl_type < 0)
GOTO(stop, rc = 0);
- rc = mdd_changelog_data_store_xattr(env, mdd, cl_type, cl_flags,
+ rc = mdd_changelog_data_store_xattr(env, mdd, cl_type, clf_flags,
mdd_obj, name, handle);
EXIT;
const char *name,
struct thandle *handle)
{
+ enum changelog_rec_type type;
int rc;
rc = mdo_declare_xattr_del(env, obj, name, handle);
if (rc)
return rc;
- if (mdd_xattr_changelog_type(env, mdd, name) < 0)
+ type = mdd_xattr_changelog_type(env, mdd, name);
+ if (type < 0)
return 0; /* no changelog to store */
- return mdd_declare_changelog_store(env, mdd, NULL, NULL, handle);
+ return mdd_declare_changelog_store(env, mdd, type, NULL, NULL, handle);
}
/**
}
/*
- * read lov EA of an object
- * return the lov EA in an allocated lu_buf
+ * read lov/lmv EA of an object
+ * return the lov/lmv EA in an allocated lu_buf
*/
-int mdd_get_lov_ea(const struct lu_env *env, struct mdd_object *obj,
- struct lu_buf *lmm_buf)
+int mdd_stripe_get(const struct lu_env *env, struct mdd_object *obj,
+ struct lu_buf *lmm_buf, const char *name)
{
- struct lu_buf *buf = &mdd_env_info(env)->mti_big_buf;
- int rc, bufsize;
+ struct lu_buf *buf = &mdd_env_info(env)->mti_big_buf;
+ int rc;
+
ENTRY;
-repeat:
- rc = mdo_xattr_get(env, obj, buf, XATTR_NAME_LOV);
+ if (buf->lb_buf == NULL) {
+ buf = lu_buf_check_and_alloc(buf, 4096);
+ if (buf->lb_buf == NULL)
+ RETURN(-ENOMEM);
+ }
+repeat:
+ rc = mdo_xattr_get(env, obj, buf, name);
if (rc == -ERANGE) {
/* mti_big_buf is allocated but is too small
* we need to increase it */
buf = lu_buf_check_and_alloc(&mdd_env_info(env)->mti_big_buf,
buf->lb_len * 2);
if (buf->lb_buf == NULL)
- GOTO(out, rc = -ENOMEM);
+ RETURN(-ENOMEM);
goto repeat;
- }
-
- if (rc < 0)
+ } else if (rc < 0) {
RETURN(rc);
-
- if (rc == 0)
+ } else if (rc == 0) {
RETURN(-ENODATA);
-
- bufsize = 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 = lu_buf_check_and_alloc(&mdd_env_info(env)->mti_big_buf,
- bufsize);
- if (buf->lb_buf == NULL)
- GOTO(out, rc = -ENOMEM);
- goto repeat;
}
- lu_buf_alloc(lmm_buf, bufsize);
+ lu_buf_alloc(lmm_buf, rc);
if (lmm_buf->lb_buf == NULL)
- GOTO(out, rc = -ENOMEM);
+ RETURN(-ENOMEM);
- memcpy(lmm_buf->lb_buf, buf->lb_buf, bufsize);
- rc = 0;
- EXIT;
+ /*
+ * we don't use lmm_buf directly, because we don't know xattr size, so
+ * by using mti_big_buf we can avoid calling mdo_xattr_get() twice.
+ */
+ memcpy(lmm_buf->lb_buf, buf->lb_buf, rc);
-out:
- if (rc < 0)
- lu_buf_free(lmm_buf);
- return rc;
+ RETURN(0);
}
static int mdd_xattr_hsm_replace(const struct lu_env *env,
struct thandle *handle)
{
struct hsm_attrs *attrs;
- __u32 hsm_flags;
- int flags = 0;
+ enum hsm_states hsm_flags;
+ enum changelog_rec_flags clf_flags = 0;
int rc;
ENTRY;
RETURN(0);
/* Add a changelog record for release. */
- hsm_set_cl_event(&flags, HE_RELEASE);
+ hsm_set_cl_event(&clf_flags, HE_RELEASE);
rc = mdd_changelog_data_store(env, mdo2mdd(&o->mod_obj), CL_HSM,
- flags, o, handle);
+ clf_flags, o, handle);
RETURN(rc);
}
return mdd_lmm_gen(lmm, gen, false);
}
+static int mdd_dom_data_truncate(const struct lu_env *env,
+ struct mdd_device *mdd, struct mdd_object *mo)
+{
+ struct thandle *th;
+ struct dt_object *dom;
+ int rc;
+
+ dom = dt_object_locate(mdd_object_child(mo), mdd->mdd_bottom);
+ if (!dom)
+ GOTO(out, rc = -ENODATA);
+
+ th = dt_trans_create(env, mdd->mdd_bottom);
+ if (IS_ERR(th))
+ GOTO(out, rc = PTR_ERR(th));
+
+ rc = dt_declare_punch(env, dom, 0, OBD_OBJECT_EOF, th);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = dt_trans_start_local(env, mdd->mdd_bottom, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ rc = dt_punch(env, dom, 0, OBD_OBJECT_EOF, th);
+stop:
+ dt_trans_stop(env, mdd->mdd_bottom, th);
+out:
+ /* Ignore failure but report the error */
+ if (rc)
+ CERROR("%s: "DFID" can't truncate DOM inode data, rc = %d\n",
+ mdd_obj_dev_name(mo), PFID(mdo2fid(mo)), rc);
+ return rc;
+}
+
/**
* 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_thread_info *info = mdd_env_info(env);
- struct mdd_object *fst_o = md2mdd_obj(obj1);
- struct mdd_object *snd_o = md2mdd_obj(obj2);
- struct lu_attr *fst_la = MDD_ENV_VAR(env, cattr);
- struct lu_attr *snd_la = MDD_ENV_VAR(env, tattr);
- struct mdd_device *mdd = mdo2mdd(obj1);
- struct lov_mds_md *fst_lmm, *snd_lmm;
- struct lu_buf *fst_buf = &info->mti_buf[0];
- struct lu_buf *snd_buf = &info->mti_buf[1];
- struct lu_buf *fst_hsm_buf = &info->mti_buf[2];
- struct lu_buf *snd_hsm_buf = &info->mti_buf[3];
- struct ost_id *saved_oi = NULL;
- struct thandle *handle;
- __u32 fst_gen, snd_gen, saved_gen;
- int fst_fl;
- int rc;
- int rc2;
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct mdd_object *fst_o = md2mdd_obj(obj1);
+ struct mdd_object *snd_o = md2mdd_obj(obj2);
+ struct lu_attr *fst_la = MDD_ENV_VAR(env, cattr);
+ struct lu_attr *snd_la = MDD_ENV_VAR(env, tattr);
+ struct mdd_device *mdd = mdo2mdd(obj1);
+ struct lov_mds_md *fst_lmm, *snd_lmm;
+ struct lu_buf *fst_buf = &info->mti_buf[0];
+ struct lu_buf *snd_buf = &info->mti_buf[1];
+ struct lu_buf *fst_hsm_buf = &info->mti_buf[2];
+ struct lu_buf *snd_hsm_buf = &info->mti_buf[3];
+ struct ost_id *saved_oi = NULL;
+ struct thandle *handle;
+ struct mdd_object *dom_o = NULL;
+ __u64 domsize_dom, domsize_vlt;
+ __u32 fst_gen, snd_gen, saved_gen;
+ int fst_fl;
+ int rc, rc2;
+
ENTRY;
CLASSERT(ARRAY_SIZE(info->mti_buf) >= 4);
mdd_write_lock(env, fst_o, MOR_TGT_CHILD);
mdd_write_lock(env, snd_o, MOR_TGT_CHILD);
- rc = mdd_get_lov_ea(env, fst_o, fst_buf);
+ rc = mdd_stripe_get(env, fst_o, fst_buf, XATTR_NAME_LOV);
if (rc < 0 && rc != -ENODATA)
GOTO(stop, rc);
- rc = mdd_get_lov_ea(env, snd_o, snd_buf);
+ rc = mdd_stripe_get(env, snd_o, snd_buf, XATTR_NAME_LOV);
if (rc < 0 && rc != -ENODATA)
GOTO(stop, rc);
+ /* check if file has DoM. DoM file can be migrated only to another
+ * DoM layout with the same DoM component size or to an non-DOM
+ * layout. After migration to OSTs layout, local MDT inode data
+ * should be truncated.
+ * Objects are sorted by FIDs, considering that original file's FID
+ * is always smaller the snd_o is always original file we are migrating
+ * from.
+ */
+ domsize_dom = mdd_lmm_dom_size(snd_buf->lb_buf);
+ domsize_vlt = mdd_lmm_dom_size(fst_buf->lb_buf);
+
+ /* Only migration is supported for DoM files, not 'swap_layouts' so
+ * target file must be volatile and orphan.
+ */
+ if (fst_o->mod_flags & (ORPHAN_OBJ | VOLATILE_OBJ)) {
+ dom_o = domsize_dom ? snd_o : NULL;
+ } else if (snd_o->mod_flags & (ORPHAN_OBJ | VOLATILE_OBJ)) {
+ swap(domsize_dom, domsize_vlt);
+ dom_o = domsize_dom ? fst_o : NULL;
+ } else if (domsize_dom > 0 || domsize_vlt > 0) {
+ /* 'lfs swap_layouts' case, neither file should have DoM */
+ rc = -EOPNOTSUPP;
+ CDEBUG(D_LAYOUT, "cannot swap layouts with DOM component, "
+ "use migration instead: rc = %d\n", rc);
+ GOTO(stop, rc);
+ }
+
+ if (domsize_vlt > 0 && domsize_dom == 0) {
+ rc = -EOPNOTSUPP;
+ CDEBUG(D_LAYOUT, "cannot swap layout for "DFID": OST to DOM "
+ "migration is not supported: rc = %d\n",
+ PFID(mdo2fid(snd_o)), rc);
+ GOTO(stop, rc);
+ } else if (domsize_vlt > 0 && domsize_dom != domsize_vlt) {
+ rc = -EOPNOTSUPP;
+ CDEBUG(D_LAYOUT, "cannot swap layout for "DFID": new layout "
+ "must have the same DoM component size: rc = %d\n",
+ PFID(mdo2fid(fst_o)), rc);
+ GOTO(stop, rc);
+ } else if (domsize_vlt > 0) {
+ /* Migration with the same DOM component size, no need to
+ * truncate local data, it is still being used */
+ dom_o = NULL;
+ }
+
/* swapping 2 non existant layouts is a success */
if (fst_buf->lb_buf == NULL && snd_buf->lb_buf == NULL)
GOTO(stop, rc = 0);
stop:
rc = mdd_trans_stop(env, mdd, rc, handle);
+ /* Truncate local DOM data if all went well */
+ if (!rc && dom_o)
+ mdd_dom_data_truncate(env, mdd, dom_o);
+
mdd_write_unlock(env, snd_o);
mdd_write_unlock(env, fst_o);
if (rc)
return rc;
- return mdd_declare_changelog_store(env, mdd, NULL, NULL, handle);
+ return mdd_declare_changelog_store(env, mdd, CL_LAYOUT, NULL, NULL,
+ handle);
}
/* For PFL, this is used to instantiate necessary component objects. */
struct md_layout_change *mlc, struct thandle *handle)
{
struct mdd_device *mdd = mdd_obj2mdd_dev(obj);
+ struct lu_buf *som_buf = &mdd_env_info(env)->mti_buf[1];
+ struct lustre_som_attrs *som = &mlc->mlc_som;
+ int fl = 0;
int rc;
ENTRY;
/* Verify acceptable operations */
switch (mlc->mlc_opc) {
case MD_LAYOUT_WRITE:
- break;
case MD_LAYOUT_RESYNC:
/* these are legal operations - this represents the case that
- * a few mirrors were missed in the last resync.
- * XXX: it will be supported later */
+ * a few mirrors were missed in the last resync. */
+ break;
case MD_LAYOUT_RESYNC_DONE:
default:
RETURN(0);
}
+ som_buf->lb_buf = som;
+ som_buf->lb_len = sizeof(*som);
+ rc = mdo_xattr_get(env, obj, som_buf, XATTR_NAME_SOM);
+ if (rc < 0 && rc != -ENODATA)
+ RETURN(rc);
+
+ if (rc > 0) {
+ lustre_som_swab(som);
+ if (som->lsa_valid & SOM_FL_STRICT)
+ fl = LU_XATTR_REPLACE;
+ }
+
rc = mdd_declare_layout_change(env, mdd, obj, mlc, handle);
if (rc)
GOTO(out, rc);
- rc = mdd_declare_xattr_del(env, mdd, obj, XATTR_NAME_SOM, handle);
- if (rc)
- GOTO(out, rc);
+ if (fl) {
+ rc = mdd_declare_xattr_set(env, mdd, obj, som_buf,
+ XATTR_NAME_SOM, fl, handle);
+ if (rc)
+ GOTO(out, rc);
+ }
/* record a changelog for data mover to consume */
- rc = mdd_declare_changelog_store(env, mdd, NULL, NULL, handle);
+ rc = mdd_declare_changelog_store(env, mdd, CL_FLRW, NULL, NULL, handle);
if (rc)
GOTO(out, rc);
mdd_write_lock(env, obj, MOR_TGT_CHILD);
rc = mdo_layout_change(env, obj, mlc, handle);
- if (!rc) {
- rc = mdo_xattr_del(env, obj, XATTR_NAME_SOM, handle);
- if (rc == -ENODATA)
- rc = 0;
+ if (!rc && fl) {
+ /* SOM state transition from STRICT to STALE */
+ som->lsa_valid = SOM_FL_STALE;
+ lustre_som_swab(som);
+ rc = mdo_xattr_set(env, obj, som_buf, XATTR_NAME_SOM,
+ fl, handle);
}
mdd_write_unlock(env, obj);
if (rc)
RETURN(-EBUSY);
}
- if (mlc->mlc_som.lsa_valid & LSOM_FL_VALID) {
+ if (mlc->mlc_som.lsa_valid & SOM_FL_STRICT) {
rc = mdo_xattr_get(env, obj, &LU_BUF_NULL, XATTR_NAME_SOM);
- if (rc && rc != -ENODATA)
+ if (rc < 0 && rc != -ENODATA)
RETURN(rc);
fl = rc == -ENODATA ? LU_XATTR_CREATE : LU_XATTR_REPLACE;
+ lustre_som_swab(&mlc->mlc_som);
som_buf->lb_buf = &mlc->mlc_som;
som_buf->lb_len = sizeof(mlc->mlc_som);
}
GOTO(out, rc);
/* record a changelog for the completion of resync */
- rc = mdd_declare_changelog_store(env, mdd, NULL, NULL, handle);
+ rc = mdd_declare_changelog_store(env, mdd, CL_RESYNC, NULL, NULL,
+ handle);
if (rc)
GOTO(out, rc);
if (IS_ERR(handle))
RETURN(PTR_ERR(handle));
- rc = mdd_get_lov_ea(env, obj, buf);
+ rc = mdd_stripe_get(env, obj, buf, XATTR_NAME_LOV);
if (rc < 0) {
if (rc == -ENODATA)
rc = -EINVAL;
nc->do_ops->do_ah_init(env, hint, np, nc, attr->la_mode & S_IFMT);
}
-/*
- * do NOT or the MAY_*'s, you'll get the weakest
- */
-int accmode(const struct lu_env *env, const struct lu_attr *la, int flags)
+static int accmode(const struct lu_env *env, const struct lu_attr *la,
+ u64 open_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) {
+ if (open_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;
+ return mds_accmode(open_flags);
}
static int mdd_open_sanity_check(const struct lu_env *env,
- struct mdd_object *obj,
- const struct lu_attr *attr, int flag)
+ struct mdd_object *obj,
+ const struct lu_attr *attr, u64 open_flags)
{
int mode, rc;
ENTRY;
- /* EEXIST check */
- if (mdd_is_dead_obj(obj))
+ /* EEXIST check, also opening of *open* orphans is allowed so we can
+ * open-by-handle unlinked files
+ */
+ if (mdd_is_dead_obj(obj) &&
+ likely(!(mdd_is_orphan_obj(obj) && obj->mod_count > 0)))
RETURN(-ENOENT);
if (S_ISLNK(attr->la_mode))
RETURN(-ELOOP);
- mode = accmode(env, attr, flag);
+ mode = accmode(env, attr, open_flags);
if (S_ISDIR(attr->la_mode) && (mode & MAY_WRITE))
RETURN(-EISDIR);
- if (!(flag & MDS_OPEN_CREATED)) {
+ if (!(open_flags & MDS_OPEN_CREATED)) {
rc = mdd_permission_internal(env, obj, attr, mode);
if (rc)
RETURN(rc);
if (S_ISFIFO(attr->la_mode) || S_ISSOCK(attr->la_mode) ||
S_ISBLK(attr->la_mode) || S_ISCHR(attr->la_mode))
- flag &= ~MDS_OPEN_TRUNC;
+ open_flags &= ~MDS_OPEN_TRUNC;
/* For writing append-only file must open it with append mode. */
if (attr->la_flags & LUSTRE_APPEND_FL) {
- if ((flag & FMODE_WRITE) && !(flag & MDS_OPEN_APPEND))
+ if ((open_flags & MDS_FMODE_WRITE) &&
+ !(open_flags & MDS_OPEN_APPEND))
RETURN(-EPERM);
- if (flag & MDS_OPEN_TRUNC)
+ if (open_flags & MDS_OPEN_TRUNC)
RETURN(-EPERM);
}
}
static int mdd_open(const struct lu_env *env, struct md_object *obj,
- int flags)
+ u64 open_flags)
{
struct mdd_object *mdd_obj = md2mdd_obj(obj);
struct md_device *md_dev = lu2md_dev(mdd2lu_dev(mdo2mdd(obj)));
struct mdd_object_user *mou = NULL;
const struct lu_ucred *uc = lu_ucred(env);
struct mdd_device *mdd = mdo2mdd(obj);
+ enum changelog_rec_type type = CL_OPEN;
int rc = 0;
mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
if (rc != 0)
GOTO(out, rc);
- rc = mdd_open_sanity_check(env, mdd_obj, attr, flags);
- if (rc != 0)
+ rc = mdd_open_sanity_check(env, mdd_obj, attr, open_flags);
+ if ((rc == -EACCES) && (mdd->mdd_cl.mc_mask & (1 << CL_DN_OPEN)))
+ type = CL_DN_OPEN;
+ else if (rc != 0)
GOTO(out, rc);
+ else
+ mdd_obj->mod_count++;
- mdd_obj->mod_count++;
-
- /* Not recording */
- if (!(mdd->mdd_cl.mc_flags & CLM_ON))
- GOTO(out, rc);
- if (!(mdd->mdd_cl.mc_mask & (1 << CL_OPEN)))
+ if (!mdd_changelog_enabled(env, mdd, type))
GOTO(out, rc);
find:
/* look for existing opener in list under mdd_write_lock */
- mou = mdd_obj_user_find(mdd_obj, uc->uc_uid, uc->uc_gid, flags);
+ mou = mdd_obj_user_find(mdd_obj, uc->uc_uid, uc->uc_gid, open_flags);
if (!mou) {
+ int rc2;
+
/* add user to list */
- mou = mdd_obj_user_alloc(flags, uc->uc_uid, uc->uc_gid);
- if (IS_ERR(mou))
- GOTO(out, rc = PTR_ERR(mou));
- rc = mdd_obj_user_add(mdd_obj, mou);
- if (rc != 0) {
+ mou = mdd_obj_user_alloc(open_flags, uc->uc_uid, uc->uc_gid);
+ if (IS_ERR(mou)) {
+ if (rc == 0)
+ rc = PTR_ERR(mou);
+ GOTO(out, rc);
+ }
+ rc2 = mdd_obj_user_add(mdd_obj, mou, type == CL_DN_OPEN);
+ if (rc2 != 0) {
mdd_obj_user_free(mou);
- if (rc == -EEXIST)
- GOTO(find, rc);
+ if (rc2 == -EEXIST)
+ GOTO(find, rc2);
}
} else {
- mou->mou_opencount++;
- /* same user opening file again with same flags: don't record */
- GOTO(out, rc);
+ if (type == CL_DN_OPEN) {
+ if (ktime_before(ktime_get(), mou->mou_deniednext))
+ /* same user denied again same access within
+ * time interval: do not record
+ */
+ GOTO(out, rc);
+
+ /* this user already denied, but some time ago:
+ * update denied time
+ */
+ mou->mou_deniednext =
+ ktime_add(ktime_get(),
+ ktime_set(mdd->mdd_cl.mc_deniednext,
+ 0));
+ } else {
+ mou->mou_opencount++;
+ /* same user opening file again with same flags:
+ * don't record
+ */
+ GOTO(out, rc);
+ }
}
- mdd_changelog(env, CL_OPEN, flags, md_dev, mdo2fid(mdd_obj));
+ /* FYI, only the bottom 32 bits of open_flags are recorded */
+ mdd_changelog(env, type, open_flags, md_dev, mdo2fid(mdd_obj));
+
EXIT;
out:
mdd_write_unlock(env, mdd_obj);
return rc;
}
-static int mdd_declare_close(const struct lu_env *env,
- struct mdd_object *obj,
- struct md_attr *ma,
- struct thandle *handle)
+static int mdd_declare_close(const struct lu_env *env, struct mdd_object *obj,
+ struct md_attr *ma, struct thandle *handle)
{
- int rc;
+ int rc;
- rc = orph_declare_index_delete(env, obj, handle);
- if (rc)
- return rc;
+ rc = mdd_orphan_declare_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, int mode)
+ struct md_attr *ma, u64 open_flags)
{
struct mdd_object *mdd_obj = md2mdd_obj(obj);
struct mdd_device *mdd = mdo2mdd(obj);
if (rc)
GOTO(stop, rc);
- rc = mdd_declare_changelog_store(env, mdd, NULL, NULL, handle);
+ rc = mdd_declare_changelog_store(env, mdd, CL_CLOSE, NULL, NULL,
+ handle);
if (rc)
GOTO(stop, rc);
/* under mdd write lock */
/* If recording, see if we need to remove UID from list */
- if ((mdd->mdd_cl.mc_flags & CLM_ON) &&
- (mdd->mdd_cl.mc_mask & (1 << CL_OPEN))) {
+ if (mdd_changelog_enabled(env, mdd, CL_OPEN)) {
struct mdd_object_user *mou;
/* look for UID in list */
* the user had the file open. So the corresponding close
* will not be logged.
*/
- mou = mdd_obj_user_find(mdd_obj, uc->uc_uid, uc->uc_gid, mode);
+ mou = mdd_obj_user_find(mdd_obj, uc->uc_uid, uc->uc_gid,
+ open_flags);
if (mou) {
mou->mou_opencount--;
if (mou->mou_opencount == 0) {
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);
+ rc = mdd_orphan_delete(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)),
out:
mdd_write_unlock(env, mdd_obj);
+ if (rc != 0 || blocked ||
+ !mdd_changelog_enabled(env, mdd, CL_CLOSE))
+ GOTO(stop, rc);
+
/* Record CL_CLOSE in changelog only if file was opened in write mode,
* or if CL_OPEN was recorded and it's last close by user.
* Changelogs mask may change between open and close operations, but
* this is not a big deal if we have a CL_CLOSE entry with no matching
* CL_OPEN. Plus Changelogs mask may not change often.
*/
- if (!rc && !blocked &&
- ((!(mdd->mdd_cl.mc_mask & (1 << CL_OPEN)) &&
- (mode & (FMODE_WRITE | MDS_OPEN_APPEND | MDS_OPEN_TRUNC))) ||
+ if (((!(mdd->mdd_cl.mc_mask & (1 << CL_OPEN)) &&
+ (open_flags & (MDS_FMODE_WRITE | MDS_OPEN_APPEND |
+ MDS_OPEN_TRUNC))) ||
((mdd->mdd_cl.mc_mask & (1 << CL_OPEN)) && last_close_by_uid)) &&
!(ma->ma_valid & MA_FLAGS && ma->ma_attr_flags & MDS_RECOV_OPEN)) {
if (handle == NULL) {
if (IS_ERR(handle))
GOTO(stop, rc = PTR_ERR(handle));
- rc = mdd_declare_changelog_store(env, mdd, NULL, NULL,
- handle);
+ rc = mdd_declare_changelog_store(env, mdd, CL_CLOSE,
+ NULL, NULL, handle);
if (rc)
GOTO(stop, rc);
- rc = mdd_trans_start(env, mdo2mdd(obj), 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);
- }
+ /* FYI, only the bottom 32 bits of open_flags are recorded */
+ mdd_changelog_data_store(env, mdd, CL_CLOSE, open_flags,
+ mdd_obj, handle);
+ }
stop:
if (handle != NULL && !IS_ERR(handle))
git://git.whamcloud.com / fs / lustre-release.git / blobdiff