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reiserfs: Move quota calls out of write lock

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Calls into highlevel quota code cannot happen under the write lock. These
calls take dqio_mutex which ranks above write lock. So drop write lock
before calling back into quota code.

CC: stable@vger.kernel.org # >= 3.0
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara
2012-11-13 17:05:14 +01:00
parent 361d94a338
commit 7af1168693
3 changed files with 25 additions and 7 deletions
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4
fs/reiserfs/stree.c
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@@ -1968,7 +1968,9 @@ int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct tree
key2type(&(key->on_disk_key)));
#endif
reiserfs_write_unlock(inode->i_sb);
retval = dquot_alloc_space_nodirty(inode, pasted_size);
reiserfs_write_lock(inode->i_sb);
if (retval) {
pathrelse(search_path);
return retval;
@@ -2061,9 +2063,11 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th,
"reiserquota insert_item(): allocating %u id=%u type=%c",
quota_bytes, inode->i_uid, head2type(ih));
#endif
reiserfs_write_unlock(inode->i_sb);
/* We can't dirty inode here. It would be immediately written but
* appropriate stat item isn't inserted yet... */
retval = dquot_alloc_space_nodirty(inode, quota_bytes);
reiserfs_write_lock(inode->i_sb);
if (retval) {
pathrelse(path);
return retval;