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f2fs: introduce background_gc=sync mount option

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This patch introduce background_gc=sync enabling synchronous cleaning in
background.

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2015-10-05 11:02:54 -07:00
父節點 456b88e4d1
當前提交 6aefd93b01
共有 5 個文件被更改，包括 22 次插入 和 9 次删除
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21
fs/f2fs/super.c
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@@ -292,11 +292,16 @@ static int parse_options(struct super_block *sb, char *options)
if (!name)
return -ENOMEM;
if (strlen(name) == 2 && !strncmp(name, "on", 2))
if (strlen(name) == 2 && !strncmp(name, "on", 2)) {
set_opt(sbi, BG_GC);
else if (strlen(name) == 3 && !strncmp(name, "off", 3))
clear_opt(sbi, FORCE_FG_GC);
} else if (strlen(name) == 3 && !strncmp(name, "off", 3)) {
clear_opt(sbi, BG_GC);
else {
clear_opt(sbi, FORCE_FG_GC);
} else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) {
set_opt(sbi, BG_GC);
set_opt(sbi, FORCE_FG_GC);
} else {
kfree(name);
return -EINVAL;
}
@@ -631,10 +636,14 @@ 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))
seq_printf(seq, ",background_gc=%s", "on");
else
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 {
seq_printf(seq, ",background_gc=%s", "off");
}
if (test_opt(sbi, DISABLE_ROLL_FORWARD))
seq_puts(seq, ",disable_roll_forward");
if (test_opt(sbi, DISCARD))