This patch adds one sysfs entry to show # of dirty segments which can be
used for gc timing by user.
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
fs/f2fs/sysfs.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index ca74bfdfd4eb..e09e59cc678a 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -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)
{
@@ -283,6 +290,7 @@ 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);
@@ -326,6 +334,7 @@ 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),
--
2.14.0.rc1.383.gd1ce394fe2-goog
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