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Commit e2a3fde75079efeb22cf1e5098d5689b664bf1d5

Authored by Jan Kara
1 parent 67f1648d21
Exists in smarc-l5.0.0_1.0.0-ga and in 5 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga

ext2: Remove i_mutex use from ext2_quota_write() 

We don't need i_mutex in ext2_quota_write() because writes to quota file
are serialized by dqio_mutex anyway. Changes to quota files outside of quota
code are forbidded and enforced by NOATIME and IMMUTABLE bits.

Signed-off-by: Jan Kara <jack@suse.cz>

Showing 1 changed file with 1 additions and 5 deletions Side-by-side Diff

... ... @@ -1434,7 +1434,6 @@
1434 1434 struct buffer_head tmp_bh;
1435 1435 struct buffer_head *bh;
1436 1436  
1437   - mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
1438 1437 while (towrite > 0) {
1439 1438 tocopy = sb->s_blocksize - offset < towrite ?
1440 1439 sb->s_blocksize - offset : towrite;
1441 1440  
1442 1441  
... ... @@ -1464,16 +1463,13 @@
1464 1463 blk++;
1465 1464 }
1466 1465 out:
1467   - if (len == towrite) {
1468   - mutex_unlock(&inode->i_mutex);
  1466 + if (len == towrite)
1469 1467 return err;
1470   - }
1471 1468 if (inode->i_size < off+len-towrite)
1472 1469 i_size_write(inode, off+len-towrite);
1473 1470 inode->i_version++;
1474 1471 inode->i_mtime = inode->i_ctime = CURRENT_TIME;
1475 1472 mark_inode_dirty(inode);
1476   - mutex_unlock(&inode->i_mutex);
1477 1473 return len - towrite;
1478 1474 }
1479 1475