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| author | Joseph Qi <joseph.qi@huawei.com> | 2015-04-14 15:43:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-14 16:48:57 -0700 |
| commit | 37a8d89aee2a5b58812e19520d96632efe987f54 (patch) | |
| tree | 3a37748f61c41beb12213bd67a46c45d25553936 /fs | |
| parent | 7e9b19551c8249baf380cbd274633ee4af95bc99 (diff) | |
| download | linux-37a8d89aee2a5b58812e19520d96632efe987f54.tar.gz linux-37a8d89aee2a5b58812e19520d96632efe987f54.tar.bz2 linux-37a8d89aee2a5b58812e19520d96632efe987f54.zip | |
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ocfs2/aops.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 2a618dd2577d..973a636285d1 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -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: |