diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-04-29 16:29:22 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-05-07 10:32:24 -0700 |
| commit | cb78942b821380913e6810375c9ce72858e64c4f (patch) | |
| tree | 1106e5e49216f247f4c373192c71a382b9065fe0 | |
| parent | c41f3cc3ae34acdbcec328084b4b74f686c02f0d (diff) | |
| download | op-kernel-dev-cb78942b821380913e6810375c9ce72858e64c4f.zip op-kernel-dev-cb78942b821380913e6810375c9ce72858e64c4f.tar.gz | |
f2fs: inject ENOSPC failures
This patch injects ENOSPC failures.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | fs/f2fs/checkpoint.c | 7 | ||||
| -rw-r--r-- | fs/f2fs/dir.c | 4 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 10 | ||||
| -rw-r--r-- | fs/f2fs/node.c | 4 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 4 |
5 files changed, 29 insertions, 0 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 9596d61..79da86d 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -474,6 +474,13 @@ int acquire_orphan_inode(struct f2fs_sb_info *sbi) int err = 0; spin_lock(&im->ino_lock); + +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(FAULT_ORPHAN)) { + spin_unlock(&im->ino_lock); + return -ENOSPC; + } +#endif if (unlikely(im->ino_num >= sbi->max_orphans)) err = -ENOSPC; else diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 6bd0595..50f42be 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -537,6 +537,10 @@ int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name, } start: +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(FAULT_DIR_DEPTH)) + return -ENOSPC; +#endif if (unlikely(current_depth == MAX_DIR_HASH_DEPTH)) return -ENOSPC; diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index d550a95..8ba2f92 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -41,6 +41,10 @@ enum { FAULT_KMALLOC, FAULT_PAGE_ALLOC, + FAULT_ALLOC_NID, + FAULT_ORPHAN, + FAULT_BLOCK, + FAULT_DIR_DEPTH, FAULT_MAX, }; @@ -1087,6 +1091,12 @@ static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, block_t valid_block_count; spin_lock(&sbi->stat_lock); +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(FAULT_BLOCK)) { + spin_unlock(&sbi->stat_lock); + return false; + } +#endif valid_block_count = sbi->total_valid_block_count + (block_t)count; if (unlikely(valid_block_count > sbi->user_block_count)) { diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index af010f5..78b98db 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1838,6 +1838,10 @@ bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid) struct f2fs_nm_info *nm_i = NM_I(sbi); struct free_nid *i = NULL; retry: +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(FAULT_ALLOC_NID)) + return false; +#endif if (unlikely(sbi->total_valid_node_count + 1 > nm_i->available_nids)) return false; diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 986d0da..87654f4 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -46,6 +46,10 @@ atomic_t f2fs_ops; char *fault_name[FAULT_MAX] = { [FAULT_KMALLOC] = "kmalloc", [FAULT_PAGE_ALLOC] = "page alloc", + [FAULT_ALLOC_NID] = "alloc nid", + [FAULT_ORPHAN] = "orphan", + [FAULT_BLOCK] = "no more block", + [FAULT_DIR_DEPTH] = "too big dir depth", }; #endif |
