diff options
| author | Chao Yu <yuchao0@huawei.com> | 2017-10-28 16:52:31 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-11-05 16:41:55 -0800 |
| commit | d62fe971485f15fa08fec2a75ac4e4ffead40a5a (patch) | |
| tree | 58ae71c7749736390d0fb975986ad2d3bd7bba0d /fs/f2fs/f2fs.h | |
| parent | 01eccef7930f137bed9501bf0923931f45909b94 (diff) | |
f2fs: support bio allocation error injection
This patch adds to support bio allocation error injection to simulate
out-of-memory test scenario.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 7ef3193db438..d89728c946a9 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -47,6 +47,7 @@ enum { FAULT_KMALLOC, FAULT_PAGE_ALLOC, FAULT_PAGE_GET, + FAULT_ALLOC_BIO, FAULT_ALLOC_NID, FAULT_ORPHAN, FAULT_BLOCK, @@ -1898,15 +1899,25 @@ static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, return entry; } -static inline struct bio *f2fs_bio_alloc(int npages) +static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, + int npages, bool no_fail) { struct bio *bio; - /* No failure on bio allocation */ - bio = bio_alloc(GFP_NOIO, npages); - if (!bio) - bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); - return bio; + if (no_fail) { + /* No failure on bio allocation */ + bio = bio_alloc(GFP_NOIO, npages); + if (!bio) + bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); + return bio; + } +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(sbi, FAULT_ALLOC_BIO)) { + f2fs_show_injection_info(FAULT_ALLOC_BIO); + return NULL; + } +#endif + return bio_alloc(GFP_KERNEL, npages); } static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |