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| author | Yunlei He <heyunlei@huawei.com> | 2017-03-01 18:07:10 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-03-21 22:34:22 -0400 |
| commit | a29d0e0bc0eeefad2a50a8aa7e3f4b98f72c7feb (patch) | |
| tree | fff732677c9be959d546d051742b6c249da71b99 /fs/f2fs/checkpoint.c | |
| parent | 5ce4738a0250ba9b6fbc89900ee0fc92a5eb60db (diff) | |
| download | linux-a29d0e0bc0eeefad2a50a8aa7e3f4b98f72c7feb.tar.bz2 | |
f2fs: skip writeback meta pages if cp_mutex acquire failed
Skip writeback meta pages if cp_mutex lock acquire failed, cp will
flush dirty pages instead.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/checkpoint.c')
| -rw-r--r-- | fs/f2fs/checkpoint.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 3c3d2d01448d..22348c7df67d 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -275,10 +275,11 @@ static int f2fs_write_meta_pages(struct address_space *mapping, get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META)) goto skip_write; - trace_f2fs_writepages(mapping->host, wbc, META); + /* if locked failed, cp will flush dirty pages instead */ + if (!mutex_trylock(&sbi->cp_mutex)) + goto skip_write; - /* if mounting is failed, skip writing node pages */ - mutex_lock(&sbi->cp_mutex); + trace_f2fs_writepages(mapping->host, wbc, META); diff = nr_pages_to_write(sbi, META, wbc); written = sync_meta_pages(sbi, META, wbc->nr_to_write); mutex_unlock(&sbi->cp_mutex); |