diff options
author | Maxim Patlasov <MPatlasov@parallels.com> | 2014-04-28 14:19:24 +0200 |
---|---|---|
committer | Miklos Szeredi <mszeredi@suse.cz> | 2014-04-28 14:19:24 +0200 |
commit | 31f3267b4ba16b12fb9dd3b1953ea0f221cc2ab4 (patch) | |
tree | 415623b0ba1a63d0c9bc2fdf189bc66cd68a650c /fs/fuse/dir.c | |
parent | 8b47e73e91c064cd75e8bf458ce738e1bfe2e700 (diff) | |
download | linux-31f3267b4ba16b12fb9dd3b1953ea0f221cc2ab4.tar.bz2 |
fuse: trust kernel i_ctime only
Let the kernel maintain i_ctime locally: update i_ctime explicitly on
truncate, fallocate, open(O_TRUNC), setxattr, removexattr, link, rename,
unlink.
The inode flag I_DIRTY_SYNC serves as indication that local i_ctime should
be flushed to the server eventually. The patch sets the flag and updates
i_ctime in course of operations listed above.
Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs/fuse/dir.c')
-rw-r--r-- | fs/fuse/dir.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 65357bd1d17b..f62ab8eedb5f 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -679,6 +679,14 @@ static int fuse_symlink(struct inode *dir, struct dentry *entry, return create_new_entry(fc, req, dir, entry, S_IFLNK); } +static inline void fuse_update_ctime(struct inode *inode) +{ + if (!IS_NOCMTIME(inode)) { + inode->i_ctime = current_fs_time(inode->i_sb); + mark_inode_dirty_sync(inode); + } +} + static int fuse_unlink(struct inode *dir, struct dentry *entry) { int err; @@ -713,6 +721,7 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry) fuse_invalidate_attr(inode); fuse_invalidate_attr(dir); fuse_invalidate_entry_cache(entry); + fuse_update_ctime(inode); } else if (err == -EINTR) fuse_invalidate_entry(entry); return err; @@ -771,6 +780,7 @@ static int fuse_rename(struct inode *olddir, struct dentry *oldent, if (!err) { /* ctime changes */ fuse_invalidate_attr(oldent->d_inode); + fuse_update_ctime(oldent->d_inode); fuse_invalidate_attr(olddir); if (olddir != newdir) @@ -780,6 +790,7 @@ static int fuse_rename(struct inode *olddir, struct dentry *oldent, if (newent->d_inode) { fuse_invalidate_attr(newent->d_inode); fuse_invalidate_entry_cache(newent); + fuse_update_ctime(newent->d_inode); } } else if (err == -EINTR) { /* If request was interrupted, DEITY only knows if the @@ -829,6 +840,7 @@ static int fuse_link(struct dentry *entry, struct inode *newdir, inc_nlink(inode); spin_unlock(&fc->lock); fuse_invalidate_attr(inode); + fuse_update_ctime(inode); } else if (err == -EINTR) { fuse_invalidate_attr(inode); } @@ -846,6 +858,8 @@ static void fuse_fillattr(struct inode *inode, struct fuse_attr *attr, attr->size = i_size_read(inode); attr->mtime = inode->i_mtime.tv_sec; attr->mtimensec = inode->i_mtime.tv_nsec; + attr->ctime = inode->i_ctime.tv_sec; + attr->ctimensec = inode->i_ctime.tv_nsec; } stat->dev = inode->i_sb->s_dev; @@ -1811,8 +1825,10 @@ static int fuse_setxattr(struct dentry *entry, const char *name, fc->no_setxattr = 1; err = -EOPNOTSUPP; } - if (!err) + if (!err) { fuse_invalidate_attr(inode); + fuse_update_ctime(inode); + } return err; } @@ -1942,8 +1958,10 @@ static int fuse_removexattr(struct dentry *entry, const char *name) fc->no_removexattr = 1; err = -EOPNOTSUPP; } - if (!err) + if (!err) { fuse_invalidate_attr(inode); + fuse_update_ctime(inode); + } return err; } |