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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-03-01 17:28:16 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-03-12 13:16:44 -0800 |
| commit | 0823427989c11240ad0f23561e66ff31a927018f (patch) | |
| tree | a8fbd90f47822f4fb01ee0cff6dde2f7b5164382 /fs | |
| parent | 3c0315424f5e3d2a4113c7272367bee1e8e6a174 (diff) | |
| download | linux-stable-0823427989c11240ad0f23561e66ff31a927018f.tar.gz linux-stable-0823427989c11240ad0f23561e66ff31a927018f.tar.bz2 linux-stable-0823427989c11240ad0f23561e66ff31a927018f.zip | |
f2fs: expose # of overprivision segments
This is useful when checking conditions during checkpoint=disable in Android.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/f2fs/sysfs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index e38a7f6921dd..0c391ab2d8b7 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -91,6 +91,13 @@ static ssize_t free_segments_show(struct f2fs_attr *a, (unsigned long long)(free_segments(sbi))); } +static ssize_t ovp_segments_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sprintf(buf, "%llu\n", + (unsigned long long)(overprovision_segments(sbi))); +} + static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a, struct f2fs_sb_info *sbi, char *buf) { @@ -629,6 +636,7 @@ F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, node_io_flag, node_io_flag); F2FS_RW_ATTR(CPRC_INFO, ckpt_req_control, ckpt_thread_ioprio, ckpt_thread_ioprio); F2FS_GENERAL_RO_ATTR(dirty_segments); F2FS_GENERAL_RO_ATTR(free_segments); +F2FS_GENERAL_RO_ATTR(ovp_segments); F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes); F2FS_GENERAL_RO_ATTR(features); F2FS_GENERAL_RO_ATTR(current_reserved_blocks); @@ -715,6 +723,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(ckpt_thread_ioprio), ATTR_LIST(dirty_segments), ATTR_LIST(free_segments), + ATTR_LIST(ovp_segments), ATTR_LIST(unusable), ATTR_LIST(lifetime_write_kbytes), ATTR_LIST(features), |