On 2021/3/2 13:42, Jaegeuk Kim wrote:
This is useful when checking conditions during checkpoint=disable in Android.
This sysfs entry is readonly, how about putting this at /sys/fs/f2fs/<disk>/stat/?
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org> --- fs/f2fs/sysfs.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index e38a7f6921dd..254b6fa17406 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);
Missed to add document entry in Documentation/ABI/testing/sysfs-fs-f2fs? Thanks,
F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes); F2FS_GENERAL_RO_ATTR(features); F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
