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Merge branch 'reiserfs/kill-bkl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing

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* '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
This commit is contained in:
Linus Torvalds
2010-01-08 14:03:55 -08:00
parent dbd6a7cfea 31370f62ba
commit 82062e7b50
4 changed files with 33 additions and 9 deletions
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18
fs/reiserfs/xattr.c
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@@ -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);