Commit 8f1572f7 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: show # of dirty segments via sysfs 



This patch adds one sysfs entry to show # of dirty segments which can be
used for gc timing by user.

Reviewed-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 1f227a3e

fs/f2fs/sysfs.c

+9 −0
Original line number Diff line number Diff line
@@ -63,6 +63,13 @@ static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type) 
	return NULL;

}



static ssize_t dirty_segments_show(struct f2fs_attr *a,

		struct f2fs_sb_info *sbi, char *buf)

{

	return snprintf(buf, PAGE_SIZE, "%llu\n",

		(unsigned long long)(dirty_segments(sbi)));

}



static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,

		struct f2fs_sb_info *sbi, char *buf)

{
@@ -278,6 +285,7 @@ F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable); 
F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate);

F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);

#endif

F2FS_GENERAL_RO_ATTR(dirty_segments);

F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);

F2FS_GENERAL_RO_ATTR(features);
@@ -320,6 +328,7 @@ static struct attribute *f2fs_attrs[] = { 
	ATTR_LIST(inject_rate),

	ATTR_LIST(inject_type),

#endif

	ATTR_LIST(dirty_segments),

	ATTR_LIST(lifetime_write_kbytes),

	ATTR_LIST(features),

	ATTR_LIST(reserved_blocks),