xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

f2fs: clean up bggc mount option

Browse Source 
There are three status for background gc: on, off and sync, it's
a little bit confused to use test_opt(BG_GC) and test_opt(FORCE_FG_GC)
combinations to indicate status of background gc.

So let's remove F2FS_MOUNT_BG_GC and F2FS_MOUNT_FORCE_FG_GC mount
options, and add F2FS_OPTION().bggc_mode with below three status
to clean up codes and enhance bggc mode's scalability.

enum {
	BGGC_MODE_ON,		/* background gc is on */
	BGGC_MODE_OFF,		/* background gc is off */
	BGGC_MODE_SYNC,		/*
				 * background gc is on, migrating blocks
				 * like foreground gc
				 */
};

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2020-02-14 17:44:13 +08:00
committed by Jaegeuk Kim
parent b0332a0f95
commit bbbc34fd66
3 changed files with 28 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
fs/f2fs/super.c
View File

@@ -427,14 +427,11 @@ static int parse_options(struct super_block *sb, char *options)
if (!name)
return -ENOMEM;
if (strlen(name) == 2 && !strncmp(name, "on", 2)) {
set_opt(sbi, BG_GC);
clear_opt(sbi, FORCE_FG_GC);
F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
} else if (strlen(name) == 3 && !strncmp(name, "off", 3)) {
clear_opt(sbi, BG_GC);
clear_opt(sbi, FORCE_FG_GC);
F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_OFF;
} else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) {
set_opt(sbi, BG_GC);
set_opt(sbi, FORCE_FG_GC);
F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_SYNC;
} else {
kvfree(name);
return -EINVAL;
@@ -1437,14 +1434,13 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
{
struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb);
if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) {
if (test_opt(sbi, FORCE_FG_GC))
seq_printf(seq, ",background_gc=%s", "sync");
else
seq_printf(seq, ",background_gc=%s", "on");
} else {
if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC)
seq_printf(seq, ",background_gc=%s", "sync");
else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON)
seq_printf(seq, ",background_gc=%s", "on");
else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF)
seq_printf(seq, ",background_gc=%s", "off");
}
if (test_opt(sbi, DISABLE_ROLL_FORWARD))
seq_puts(seq, ",disable_roll_forward");
if (test_opt(sbi, NORECOVERY))
@@ -1576,8 +1572,8 @@ static void default_options(struct f2fs_sb_info *sbi)
F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZO;
F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
F2FS_OPTION(sbi).compress_ext_cnt = 0;
F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
set_opt(sbi, BG_GC);
set_opt(sbi, INLINE_XATTR);
set_opt(sbi, INLINE_DATA);
set_opt(sbi, INLINE_DENTRY);
@@ -1783,7 +1779,8 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
* or if background_gc = off is passed in mount
* option. Also sync the filesystem.
*/
if ((*flags & SB_RDONLY) || !test_opt(sbi, BG_GC)) {
if ((*flags & SB_RDONLY) ||
F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF) {
if (sbi->gc_thread) {
f2fs_stop_gc_thread(sbi);
need_restart_gc = true;
@@ -3668,7 +3665,7 @@ reset_checkpoint:
* If filesystem is not mounted as read-only then
* do start the gc_thread.
*/
if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) {
if (F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF && !f2fs_readonly(sb)) {
/* After POR, we can run background GC thread.*/
err = f2fs_start_gc_thread(sbi);
if (err)