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authorLinus Torvalds <torvalds@linux-foundation.org>2010-01-09 01:03:55 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2010-01-09 01:03:55 +0300
commit82062e7b50280bcf0feca70ac35a44f375602976 (patch)
tree0321bff42945768990a92c3770d4270497c0e8ee /fs/reiserfs/xattr.c
parentdbd6a7cfead4fa2d7ad3fefe47168fcb146ac5ba (diff)
parent31370f62baa1460b785cee9944bdcaf63d19e567 (diff)
downloadlinux-82062e7b50280bcf0feca70ac35a44f375602976.tar.xz
Merge branch 'reiserfs/kill-bkl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing
* 'reiserfs/kill-bkl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing: reiserfs: Relax reiserfs_xattr_set_handle() while acquiring xattr locks reiserfs: Fix unreachable statement reiserfs: Don't call reiserfs_get_acl() with the reiserfs lock reiserfs: Relax lock on xattr removing reiserfs: Relax the lock before truncating pages reiserfs: Fix recursive lock on lchown reiserfs: Fix mistake in down_write() conversion
Diffstat (limited to 'fs/reiserfs/xattr.c')
-rw-r--r--fs/reiserfs/xattr.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index c3b004ee627b..81f09fab8ae4 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -452,7 +452,9 @@ static int lookup_and_delete_xattr(struct inode *inode, const char *name)
}
if (dentry->d_inode) {
+ reiserfs_write_lock(inode->i_sb);
err = xattr_unlink(xadir->d_inode, dentry);
+ reiserfs_write_unlock(inode->i_sb);
update_ctime(inode);
}
@@ -486,17 +488,21 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th,
if (get_inode_sd_version(inode) == STAT_DATA_V1)
return -EOPNOTSUPP;
- if (!buffer)
- return lookup_and_delete_xattr(inode, name);
-
reiserfs_write_unlock(inode->i_sb);
+
+ if (!buffer) {
+ err = lookup_and_delete_xattr(inode, name);
+ reiserfs_write_lock(inode->i_sb);
+ return err;
+ }
+
dentry = xattr_lookup(inode, name, flags);
if (IS_ERR(dentry)) {
reiserfs_write_lock(inode->i_sb);
return PTR_ERR(dentry);
}
- down_read(&REISERFS_I(inode)->i_xattr_sem);
+ down_write(&REISERFS_I(inode)->i_xattr_sem);
reiserfs_write_lock(inode->i_sb);
@@ -554,8 +560,12 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th,
.ia_size = buffer_size,
.ia_valid = ATTR_SIZE | ATTR_CTIME,
};
+
+ reiserfs_write_unlock(inode->i_sb);
mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR);
down_write(&dentry->d_inode->i_alloc_sem);
+ reiserfs_write_lock(inode->i_sb);
+
err = reiserfs_setattr(dentry, &newattrs);
up_write(&dentry->d_inode->i_alloc_sem);
mutex_unlock(&dentry->d_inode->i_mutex);