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| author | Zhao Lei <zhaolei@cn.fujitsu.com> | 2015-12-31 18:48:54 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-02-18 10:26:12 +0100 |
| commit | 319450211842ba92d0604af6e4ddf15f445efbcf (patch) | |
| tree | dfcde7d6d0048928a9cfd8ec4b2be64f506e0f98 /fs/btrfs/reada.c | |
| parent | 6a159d2ae488a835a8ca5f1f658db72b7e13d064 (diff) | |
| download | linux-319450211842ba92d0604af6e4ddf15f445efbcf.tar.bz2 | |
btrfs: reada: bypass adding extent when all zone failed
When failed adding all dev_zones for a reada_extent, the extent
will have no chance to be selected to run, and keep in memory
for ever.
We should bypass this extent to avoid above case.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/reada.c')
| -rw-r--r-- | fs/btrfs/reada.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c index 27a2fe914c67..1d00de7369a8 100644 --- a/fs/btrfs/reada.c +++ b/fs/btrfs/reada.c @@ -330,6 +330,7 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root, int nzones = 0; unsigned long index = logical >> PAGE_CACHE_SHIFT; int dev_replace_is_ongoing; + int have_zone = 0; spin_lock(&fs_info->reada_lock); re = radix_tree_lookup(&fs_info->reada_tree, index); @@ -456,10 +457,14 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root, btrfs_dev_replace_unlock(&fs_info->dev_replace); goto error; } + have_zone = 1; } spin_unlock(&fs_info->reada_lock); btrfs_dev_replace_unlock(&fs_info->dev_replace); + if (!have_zone) + goto error; + btrfs_put_bbio(bbio); return re; |