Messages in this thread | | | Subject | Re: [f2fs-dev] [PATCH] f2fs: expose # of overprivision segments | From | Chao Yu <> | Date | Tue, 2 Mar 2021 14:11:07 +0800 |
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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 <jaegeuk@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); >
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