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ext3: Remove i_mutex use from ext3_quota_write()
We don't need i_mutex in ext3_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>
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@ -3000,7 +3000,6 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type,
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(unsigned long long)off, (unsigned long long)len);
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return -EIO;
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}
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mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
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bh = ext3_bread(handle, inode, blk, 1, &err);
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if (!bh)
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goto out;
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@ -3024,10 +3023,8 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type,
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}
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brelse(bh);
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out:
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if (err) {
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mutex_unlock(&inode->i_mutex);
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if (err)
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return err;
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}
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if (inode->i_size < off + len) {
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i_size_write(inode, off + len);
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EXT3_I(inode)->i_disksize = inode->i_size;
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@ -3035,7 +3032,6 @@ out:
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inode->i_version++;
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inode->i_mtime = inode->i_ctime = CURRENT_TIME;
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ext3_mark_inode_dirty(handle, inode);
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mutex_unlock(&inode->i_mutex);
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return len;
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}
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