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authorJaegeuk Kim <jaegeuk@kernel.org>2017-10-24 09:46:54 +0200
committerJaegeuk Kim <jaegeuk@kernel.org>2017-11-05 16:41:47 -0800
commit8f1572f7ce6169a4687cec1a89ce9c85cbf14eee (patch)
treeeddbde6944a2019fd5adddd705cfa543091968b1 /fs/f2fs/sysfs.c
parent1f227a3e215d3613ea6cbc2fbe29caafbcaa8f71 (diff)
downloadlinux-8f1572f7ce6169a4687cec1a89ce9c85cbf14eee.tar.bz2
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: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/sysfs.c')
-rw-r--r--fs/f2fs/sysfs.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 89f25efffd43..48ebe6153cc5 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)
{
@@ -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),