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| author | Chris Mason <clm@fb.com> | 2016-12-08 17:55:03 -0800 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2016-12-11 15:27:15 -0800 |
| commit | 7c4c71ac8a72aea595f4cc7e09c2bcc61929c4ac (patch) | |
| tree | ad675b9a57b2cb4cd2a691f7340a56eeaf952d1c /fs | |
| parent | e5d6b12fe14e89ea1c494585c47b1dfb31d71183 (diff) | |
| download | linux-stable-7c4c71ac8a72aea595f4cc7e09c2bcc61929c4ac.tar.gz linux-stable-7c4c71ac8a72aea595f4cc7e09c2bcc61929c4ac.tar.bz2 linux-stable-7c4c71ac8a72aea595f4cc7e09c2bcc61929c4ac.zip | |
Revert "Btrfs: adjust len of writes if following a preallocated extent"
This is exposing an existing deadlock between fsync and AIO. Until we
have the deadlock fixed, I'm pulling this one out.
This reverts commit a23eaa875f0f1d89eb866b8c9860e78273ff5daf.
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/inode.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index dbcec1ced85a..a713d9d324b0 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -7765,12 +7765,10 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock, } /* - * this will cow the extent, if em is within [start, len], then - * probably we've found a preallocated/existing extent, let's - * give it a chance to use preallocated space. + * this will cow the extent, reset the len in case we changed + * it above */ - len = min_t(u64, bh_result->b_size, em->len - (start - em->start)); - len = ALIGN(len, fs_info->sectorsize); + len = bh_result->b_size; free_extent_map(em); em = btrfs_new_extent_direct(inode, start, len); if (IS_ERR(em)) { |