From: Jeff Mahoney <jeffm@xxxxxxxx>
Since commit d0a5b995a30 (vfs: Add IOP_XATTR inode operations flag)
extended attributes haven't worked on the root directory in reiserfs.
This is due to reiserfs conditionally setting the sb->s_xattrs handler
array depending on whether it located or create the internal privroot
directory. It necessarily does this after the root inode is already
read in. The IOP_XATTR flag is set during inode initialization, so
it never gets set on the root directory.
This commit unconditionally assigns sb->s_xattrs and clears IOP_XATTR on
internal inodes. The old return values due to the conditional assignment
are handled via open_xa_root, which now returns EOPNOTSUPP as the VFS
would have done.
Signed-off-by: Jeff Mahoney <jeffm@xxxxxxxx>
---
fs/reiserfs/inode.c | 12 ++++++++++--
fs/reiserfs/namei.c | 7 +++++--
fs/reiserfs/reiserfs.h | 2 ++
fs/reiserfs/super.c | 2 ++
fs/reiserfs/xattr.c | 19 ++++++++++++-------
fs/reiserfs/xattr_acl.c | 4 +---
6 files changed, 32 insertions(+), 14 deletions(-)
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 132ec4406ed0..6419e6dacc39 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -2097,6 +2097,15 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
goto out_inserted_sd;
}
+ /*
+ * Mark it private if we're creating the privroot
+ * or something under it.
+ */
+ if (IS_PRIVATE(dir) || dentry == REISERFS_SB(sb)->priv_root) {
+ inode->i_flags |= S_PRIVATE;
+ inode->i_opflags &= ~IOP_XATTR;
+ }
+
if (reiserfs_posixacl(inode->i_sb)) {
reiserfs_write_unlock(inode->i_sb);
retval = reiserfs_inherit_default_acl(th, dir, dentry, inode);
@@ -2111,8 +2120,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
reiserfs_warning(inode->i_sb, "jdm-13090",
"ACLs aren't enabled in the fs, "
"but vfs thinks they are!");
- } else if (IS_PRIVATE(dir))
- inode->i_flags |= S_PRIVATE;
+ }
if (security->name) {
reiserfs_write_unlock(inode->i_sb);
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 97f3fc4fdd79..959a066b7bb0 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -377,10 +377,13 @@ static struct dentry *reiserfs_lookup(struct inode *dir, struct dentry *dentry,
/*
* Propagate the private flag so we know we're
- * in the priv tree
+ * in the priv tree. Also clear IOP_XATTR
+ * since we don't have xattrs on xattr files.
*/
- if (IS_PRIVATE(dir))
+ if (IS_PRIVATE(dir)) {
inode->i_flags |= S_PRIVATE;
+ inode->i_opflags &= ~IOP_XATTR;
+ }
}
reiserfs_write_unlock(dir->i_sb);
if (retval == IO_ERROR) {
diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
index e5ca9ed79e54..726580114d55 100644
--- a/fs/reiserfs/reiserfs.h
+++ b/fs/reiserfs/reiserfs.h
@@ -1168,6 +1168,8 @@ static inline int bmap_would_wrap(unsigned bmap_nr)
return bmap_nr > ((1LL << 16) - 1);
}
+extern const struct xattr_handler *reiserfs_xattr_handlers[];
+
/*
* this says about version of key of all items (but stat data) the
* object consists of
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index d69b4ac0ae2f..3244037b1286 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -2049,6 +2049,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
if (replay_only(s))
goto error_unlocked;
+ s->s_xattr = reiserfs_xattr_handlers;
+
if (bdev_read_only(s->s_bdev) && !sb_rdonly(s)) {
SWARN(silent, s, "clm-7000",
"Detected readonly device, marking FS readonly");
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index c1b996e548af..06497965f0a0 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -122,13 +122,13 @@ static struct dentry *open_xa_root(struct super_block *sb, int flags)
struct dentry *xaroot;
if (d_really_is_negative(privroot))
- return ERR_PTR(-ENODATA);
+ return ERR_PTR(-EOPNOTSUPP);
inode_lock_nested(d_inode(privroot), I_MUTEX_XATTR);
xaroot = dget(REISERFS_SB(sb)->xattr_root);
if (!xaroot)
- xaroot = ERR_PTR(-ENODATA);
+ xaroot = ERR_PTR(-EOPNOTSUPP);
else if (d_really_is_negative(xaroot)) {
int err = -ENODATA;
@@ -619,6 +619,10 @@ int reiserfs_xattr_set(struct inode *inode, const char *name,
int error, error2;
size_t jbegin_count = reiserfs_xattr_nblocks(inode, buffer_size);
+ /* Check before we start a transaction and then do nothing. */
+ if (!d_really_is_positive(REISERFS_SB(inode->i_sb)->priv_root))
+ return -EOPNOTSUPP;
+
if (!(flags & XATTR_REPLACE))
jbegin_count += reiserfs_xattr_jcreate_nblocks(inode);
@@ -841,8 +845,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
if (d_really_is_negative(dentry))
return -EINVAL;
- if (!dentry->d_sb->s_xattr ||
- get_inode_sd_version(d_inode(dentry)) == STAT_DATA_V1)
+ if (get_inode_sd_version(d_inode(dentry)) == STAT_DATA_V1)
return -EOPNOTSUPP;
dir = open_xa_dir(d_inode(dentry), XATTR_REPLACE);
@@ -882,6 +885,7 @@ static int create_privroot(struct dentry *dentry)
}
d_inode(dentry)->i_flags |= S_PRIVATE;
+ d_inode(dentry)->i_opflags &= ~IOP_XATTR;
reiserfs_info(dentry->d_sb, "Created %s - reserved for xattr "
"storage.\n", PRIVROOT_NAME);
@@ -893,7 +897,7 @@ static int create_privroot(struct dentry *dentry) { return 0; }
#endif
/* Actual operations that are exported to VFS-land */
-static const struct xattr_handler *reiserfs_xattr_handlers[] = {
+const struct xattr_handler *reiserfs_xattr_handlers[] = {
#ifdef CONFIG_REISERFS_FS_XATTR
&reiserfs_xattr_user_handler,
&reiserfs_xattr_trusted_handler,
@@ -964,8 +968,10 @@ int reiserfs_lookup_privroot(struct super_block *s)
if (!IS_ERR(dentry)) {
REISERFS_SB(s)->priv_root = dentry;
d_set_d_op(dentry, &xattr_lookup_poison_ops);
- if (d_really_is_positive(dentry))
+ if (d_really_is_positive(dentry)) {
d_inode(dentry)->i_flags |= S_PRIVATE;
+ d_inode(dentry)->i_opflags &= ~IOP_XATTR;
+ }
} else
err = PTR_ERR(dentry);
inode_unlock(d_inode(s->s_root));
@@ -994,7 +1000,6 @@ int reiserfs_xattr_init(struct super_block *s, int mount_flags)
}
if (d_really_is_positive(privroot)) {
- s->s_xattr = reiserfs_xattr_handlers;
inode_lock(d_inode(privroot));
if (!REISERFS_SB(s)->xattr_root) {
struct dentry *dentry;
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index aa9380bac196..05f666794561 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -320,10 +320,8 @@ reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
* would be useless since permissions are ignored, and a pain because
* it introduces locking cycles
*/
- if (IS_PRIVATE(dir)) {
- inode->i_flags |= S_PRIVATE;
+ if (IS_PRIVATE(inode))
goto apply_umask;
- }
err = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
if (err)
--
2.16.4
