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| author |   Chao Yu <chao@kernel.org> | 2024-02-22 20:18:51 +0800 |
|---|---|---|
| committer |   Jaegeuk Kim <jaegeuk@kernel.org> | 2024-02-29 08:34:34 -0800 |
| commit | 8b10d3653735e117bc1954ade80d75ad7b46b801 (patch) | |
| tree | 1a10c5b7bfab11d04f5da5995e77f5c0a5fff218 | |
| parent | f2fs: compress: fix to check compress flag w/ .i_sem lock (diff) | |
| download | wireguard-linux-8b10d3653735e117bc1954ade80d75ad7b46b801.tar.xz wireguard-linux-8b10d3653735e117bc1954ade80d75ad7b46b801.zip | |
f2fs: introduce FAULT_NO_SEGMENT
Use it to simulate no free segment case during block allocation.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 1 | ||||
| -rw-r--r-- | Documentation/filesystems/f2fs.rst | 1 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 | ||||
| -rw-r--r-- | fs/f2fs/segment.c | 5 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 1 |
5 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 22d070c0de40..1a4d83953379 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -724,6 +724,7 @@ Description: Support configuring fault injection type, should be FAULT_LOCK_OP 0x000020000 FAULT_BLKADDR_VALIDITY 0x000040000 FAULT_BLKADDR_CONSISTENCE 0x000080000 + FAULT_NO_SEGMENT 0x000100000 =========================== =========== What: /sys/fs/f2fs/<disk>/discard_io_aware_gran diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst index 8930d9ea8c4e..efc3493fd6f8 100644 --- a/Documentation/filesystems/f2fs.rst +++ b/Documentation/filesystems/f2fs.rst @@ -205,6 +205,7 @@ fault_type=%d Support configuring fault injection type, should be FAULT_LOCK_OP 0x000020000 FAULT_BLKADDR_VALIDITY 0x000040000 FAULT_BLKADDR_CONSISTENCE 0x000080000 + FAULT_NO_SEGMENT 0x000100000 =========================== =========== mode=%s Control block allocation mode which supports "adaptive" and "lfs". In "lfs" mode, there should be no random diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 4ce48dbae55b..f1ec1a53afec 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -62,6 +62,7 @@ enum { FAULT_LOCK_OP, FAULT_BLKADDR_VALIDITY, FAULT_BLKADDR_CONSISTENCE, + FAULT_NO_SEGMENT, FAULT_MAX, }; diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index a5339dd7a932..dab9544f871a 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -2656,6 +2656,11 @@ static int get_new_segment(struct f2fs_sb_info *sbi, spin_lock(&free_i->segmap_lock); + if (time_to_inject(sbi, FAULT_NO_SEGMENT)) { + ret = -ENOSPC; + goto out_unlock; + } + if (!new_sec && ((*newseg + 1) % SEGS_PER_SEC(sbi))) { segno = find_next_zero_bit(free_i->free_segmap, GET_SEG_FROM_SEC(sbi, hint + 1), *newseg + 1); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 329f317e6f09..6190aace3d8c 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -63,6 +63,7 @@ const char *f2fs_fault_name[FAULT_MAX] = { [FAULT_LOCK_OP] = "lock_op", [FAULT_BLKADDR_VALIDITY] = "invalid blkaddr", [FAULT_BLKADDR_CONSISTENCE] = "inconsistent blkaddr", + [FAULT_NO_SEGMENT] = "no free segment", }; void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, |