Hi, I merged two patches and modified a bit. Please take a look.
https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/commit/?h=dev&id=28ea9479410bab555db26e8437ea61b180e768d6 On 10/25, Yangtao Li wrote: > gc_mode sysfs node can show the current gc_mode as a string. > Introducing it increases readability. > > Signed-off-by: Yangtao Li <frank...@vivo.com> > --- > Documentation/ABI/testing/sysfs-fs-f2fs | 6 ++++++ > fs/f2fs/f2fs.h | 1 + > fs/f2fs/sysfs.c | 18 ++++++++++++++++++ > 3 files changed, 25 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs > b/Documentation/ABI/testing/sysfs-fs-f2fs > index 483639fb727b..6466f3b1f0a9 100644 > --- a/Documentation/ABI/testing/sysfs-fs-f2fs > +++ b/Documentation/ABI/testing/sysfs-fs-f2fs > @@ -634,3 +634,9 @@ Date: July 2022 > Contact: "Daeho Jeong" <daehoje...@google.com> > Description: Show the accumulated total revoked atomic write block count > after boot. > If you write "0" here, you can initialize to "0". > + > +What: /sys/fs/f2fs/<disk>/gc_mode > +Date: October 2022 > +Contact: "Yangtao Li" <frank...@vivo.com> > +Description: Show the current gc_mode as a string. > + This is a read-only entry. > diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h > index e6355a5683b7..80f23e44a442 100644 > --- a/fs/f2fs/f2fs.h > +++ b/fs/f2fs/f2fs.h > @@ -1318,6 +1318,7 @@ enum { > MAX_TIME, > }; > > +/* Note that you need to keep synchronization with this gc_mode_names array > */ > enum { > GC_NORMAL, > GC_IDLE_CB, > diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c > index 49898a7243ba..058857d8b3b9 100644 > --- a/fs/f2fs/sysfs.c > +++ b/fs/f2fs/sysfs.c > @@ -41,6 +41,16 @@ enum { > ATGC_INFO, /* struct atgc_management */ > }; > > +static const char *gc_mode_names[MAX_GC_MODE] = { > + "GC_NORMAL", > + "GC_IDLE_CB", > + "GC_IDLE_GREEDY", > + "GC_IDLE_AT", > + "GC_URGENT_HIGH", > + "GC_URGENT_LOW", > + "GC_URGENT_MID" > +}; > + > struct f2fs_attr { > struct attribute attr; > ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *); > @@ -133,6 +143,12 @@ static ssize_t pending_discard_show(struct f2fs_attr *a, > &SM_I(sbi)->dcc_info->discard_cmd_cnt)); > } > > +static ssize_t gc_mode_show(struct f2fs_attr *a, > + struct f2fs_sb_info *sbi, char *buf) > +{ > + return sprintf(buf, "%s\n", gc_mode_names[sbi->gc_mode]); > +} > + > static ssize_t features_show(struct f2fs_attr *a, > struct f2fs_sb_info *sbi, char *buf) > { > @@ -823,6 +839,7 @@ F2FS_GENERAL_RO_ATTR(encoding); > F2FS_GENERAL_RO_ATTR(mounted_time_sec); > F2FS_GENERAL_RO_ATTR(main_blkaddr); > F2FS_GENERAL_RO_ATTR(pending_discard); > +F2FS_GENERAL_RO_ATTR(gc_mode); > #ifdef CONFIG_F2FS_STAT_FS > F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count); > F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count); > @@ -904,6 +921,7 @@ static struct attribute *f2fs_attrs[] = { > ATTR_LIST(max_discard_issue_time), > ATTR_LIST(discard_granularity), > ATTR_LIST(pending_discard), > + ATTR_LIST(gc_mode), > ATTR_LIST(batched_trim_sections), > ATTR_LIST(ipu_policy), > ATTR_LIST(min_ipu_util), > -- > 2.25.1 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
