it = file->private_data; /* XXX: compat macro */
file->private_data = NULL; /* prevent ll_local_open assertion */
+ if (S_ISREG(inode->i_mode)) {
+ rc = llcrypt_file_open(inode, file);
+ if (rc)
+ GOTO(out_nofiledata, rc);
+ }
+
fd = ll_file_data_get();
if (fd == NULL)
GOTO(out_nofiledata, rc = -ENOMEM);
fd->fd_designated_mirror = (__u32)arg;
RETURN(0);
}
- case LL_IOC_FSGETXATTR:
+ case FS_IOC_FSGETXATTR:
RETURN(ll_ioctl_fsgetxattr(inode, cmd, arg));
- case LL_IOC_FSSETXATTR:
+ case FS_IOC_FSSETXATTR:
RETURN(ll_ioctl_fssetxattr(inode, cmd, arg));
case BLKSSZGET:
RETURN(put_user(PAGE_SIZE, (int __user *)arg));
RETURN(0);
}
-int ll_getattr_dentry(struct dentry *de, struct kstat *stat)
+int ll_getattr_dentry(struct dentry *de, struct kstat *stat, u32 request_mask,
+ unsigned int flags)
{
struct inode *inode = de->d_inode;
struct ll_sb_info *sbi = ll_i2sbi(inode);
struct ll_inode_info *lli = ll_i2info(inode);
+ struct inode *dir = de->d_parent->d_inode;
+ bool need_glimpse = true;
ktime_t kstart = ktime_get();
int rc;
+ /* The OST object(s) determine the file size, blocks and mtime. */
+ if (!(request_mask & STATX_SIZE || request_mask & STATX_BLOCKS ||
+ request_mask & STATX_MTIME))
+ need_glimpse = false;
+
+ if (dentry_may_statahead(dir, de))
+ ll_start_statahead(dir, de, need_glimpse &&
+ !(flags & AT_STATX_DONT_SYNC));
+
+ if (flags & AT_STATX_DONT_SYNC)
+ GOTO(fill_attr, rc = 0);
+
rc = ll_inode_revalidate(de, IT_GETATTR);
if (rc < 0)
RETURN(rc);
if (S_ISREG(inode->i_mode)) {
bool cached;
- rc = pcc_inode_getattr(inode, &cached);
+ if (!need_glimpse)
+ GOTO(fill_attr, rc);
+
+ rc = pcc_inode_getattr(inode, request_mask, flags, &cached);
if (cached && rc < 0)
RETURN(rc);
+ if (cached)
+ GOTO(fill_attr, rc);
+
+ /*
+ * If the returned attr is masked with OBD_MD_FLSIZE &
+ * OBD_MD_FLBLOCKS & OBD_MD_FLMTIME, it means that the file size
+ * or blocks obtained from MDT is strictly correct, and the file
+ * is usually not being modified by clients, and the [a|m|c]time
+ * got from MDT is also strictly correct.
+ * Under this circumstance, it does not need to send glimpse
+ * RPCs to OSTs for file attributes such as the size and blocks.
+ */
+ if (lli->lli_attr_valid & OBD_MD_FLSIZE &&
+ lli->lli_attr_valid & OBD_MD_FLBLOCKS &&
+ lli->lli_attr_valid & OBD_MD_FLMTIME) {
+ inode->i_mtime.tv_sec = lli->lli_mtime;
+ if (lli->lli_attr_valid & OBD_MD_FLATIME)
+ inode->i_atime.tv_sec = lli->lli_atime;
+ if (lli->lli_attr_valid & OBD_MD_FLCTIME)
+ inode->i_ctime.tv_sec = lli->lli_ctime;
+ GOTO(fill_attr, rc);
+ }
+
/* 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.
* restore the MDT holds the layout lock so the glimpse will
* block up to the end of restore (getattr will block)
*/
- if (!cached && !ll_file_test_flag(lli, LLIF_FILE_RESTORING)) {
+ if (!ll_file_test_flag(lli, LLIF_FILE_RESTORING)) {
rc = ll_glimpse_size(inode);
if (rc < 0)
RETURN(rc);
RETURN(rc);
}
- inode->i_atime.tv_sec = lli->lli_atime;
- inode->i_mtime.tv_sec = lli->lli_mtime;
- inode->i_ctime.tv_sec = lli->lli_ctime;
+ if (lli->lli_attr_valid & OBD_MD_FLATIME)
+ inode->i_atime.tv_sec = lli->lli_atime;
+ if (lli->lli_attr_valid & OBD_MD_FLMTIME)
+ inode->i_mtime.tv_sec = lli->lli_mtime;
+ if (lli->lli_attr_valid & OBD_MD_FLCTIME)
+ inode->i_ctime.tv_sec = lli->lli_ctime;
}
+fill_attr:
OBD_FAIL_TIMEOUT(OBD_FAIL_GETATTR_DELAY, 30);
if (ll_need_32bit_api(sbi)) {
stat->size = i_size_read(inode);
stat->blocks = inode->i_blocks;
+#ifdef HAVE_INODEOPS_ENHANCED_GETATTR
+ if (flags & AT_STATX_DONT_SYNC) {
+ if (stat->size == 0 &&
+ lli->lli_attr_valid & OBD_MD_FLLAZYSIZE)
+ stat->size = lli->lli_lazysize;
+ if (stat->blocks == 0 &&
+ lli->lli_attr_valid & OBD_MD_FLLAZYBLOCKS)
+ stat->blocks = lli->lli_lazyblocks;
+ }
+
+ if (lli->lli_attr_valid & OBD_MD_FLBTIME) {
+ stat->result_mask |= STATX_BTIME;
+ stat->btime.tv_sec = lli->lli_btime;
+ }
+
+ stat->attributes_mask = STATX_ATTR_IMMUTABLE | STATX_ATTR_APPEND;
+ stat->attributes |= ll_inode_to_ext_flags(inode->i_flags);
+ stat->result_mask &= request_mask;
+#endif
+
ll_stats_ops_tally(sbi, LPROC_LL_GETATTR,
ktime_us_delta(ktime_get(), kstart));
int ll_getattr(const struct path *path, struct kstat *stat,
u32 request_mask, unsigned int flags)
{
- struct dentry *de = path->dentry;
+ return ll_getattr_dentry(path->dentry, stat, request_mask, flags);
+}
#else
int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
{
-#endif
- return ll_getattr_dentry(de, stat);
+ return ll_getattr_dentry(de, stat, STATX_BASIC_STATS,
+ AT_STATX_SYNC_AS_STAT);
}
+#endif
int cl_falloc(struct inode *inode, int mode, loff_t offset, loff_t len)
{
git://git.whamcloud.com / fs / lustre-release.git / blobdiff