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ocfs2: take inode lock when get clusters 

We need take inode lock when calling ocfs2_get_clusters.
And use GFP_NOFS instead of GFP_KERNEL.

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Joseph Qi 2015-04-14 15:43:10 -07:00 committed by Linus Torvalds
parent 7e9b19551c
commit 37a8d89aee
1 changed files with 10 additions and 1 deletions
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11
fs/ocfs2/aops.c
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@ -772,10 +772,17 @@ static ssize_t ocfs2_direct_IO_write(struct kiocb *iocb,
u32 p_cpos = 0;
u32 v_cpos = ocfs2_bytes_to_clusters(osb->sb, offset);
ret = ocfs2_inode_lock(inode, NULL, 0);
if (ret < 0) {
mlog_errno(ret);
goto clean_orphan;
}
ret = ocfs2_get_clusters(inode, v_cpos, &p_cpos,
&num_clusters, &ext_flags);
if (ret < 0) {
mlog_errno(ret);
ocfs2_inode_unlock(inode, 0);
goto clean_orphan;
}
@ -783,9 +790,11 @@ static ssize_t ocfs2_direct_IO_write(struct kiocb *iocb,
ret = blkdev_issue_zeroout(osb->sb->s_bdev,
p_cpos << (osb->s_clustersize_bits - 9),
zero_len >> 9, GFP_KERNEL, false);
zero_len >> 9, GFP_NOFS, false);
if (ret < 0)
mlog_errno(ret);
ocfs2_inode_unlock(inode, 0);
}
clean_orphan: