diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-10-30 22:47:03 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-11-04 17:34:15 -0800 |
| commit | d5053a34a9cc797b9d5d77574354b5555848c43c (patch) | |
| tree | 86e6e101b812f6d2500b46bf1cd567aa9c8b33c6 /fs/f2fs | |
| parent | be138b7b0d4cbfb8a927d9bc333ceffee9908c23 (diff) | |
| download | linux-d5053a34a9cc797b9d5d77574354b5555848c43c.tar.bz2 | |
f2fs: introduce -o fastboot for reducing booting time only
If a system wants to reduce the booting time as a top priority, now we can
use a mount option, -o fastboot.
With this option, f2fs conducts a little bit slow write_checkpoint, but
it can avoid the node page reads during the next mount time.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 | ||||
| -rw-r--r-- | fs/f2fs/file.c | 2 | ||||
| -rw-r--r-- | fs/f2fs/gc.c | 6 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 13 |
4 files changed, 16 insertions, 6 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 5a9705842f10..d45f3f4d7f93 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -49,6 +49,7 @@ #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 #define F2FS_MOUNT_NOBARRIER 0x00000800 +#define F2FS_MOUNT_FASTBOOT 0x00001000 #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 832bd91922b8..46311e7b388a 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -130,6 +130,8 @@ static inline bool need_do_checkpoint(struct inode *inode) need_cp = true; else if (F2FS_I(inode)->xattr_ver == cur_cp_version(F2FS_CKPT(sbi))) need_cp = true; + else if (test_opt(sbi, FASTBOOT)) + need_cp = true; return need_cp; } diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 7151d7de7d95..b197a2f2993a 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -695,9 +695,9 @@ int f2fs_gc(struct f2fs_sb_info *sbi) int gc_type = BG_GC; int nfree = 0; int ret = -1; - struct cp_control cpc = { - .reason = CP_SYNC, - }; + struct cp_control cpc; + + cpc.reason = test_opt(sbi, FASTBOOT) ? CP_UMOUNT : CP_SYNC; INIT_LIST_HEAD(&ilist); gc_more: diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 6c5fc7605109..512ffd8e1624 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -54,6 +54,7 @@ enum { Opt_inline_dentry, Opt_flush_merge, Opt_nobarrier, + Opt_fastboot, Opt_err, }; @@ -73,6 +74,7 @@ static match_table_t f2fs_tokens = { {Opt_inline_dentry, "inline_dentry"}, {Opt_flush_merge, "flush_merge"}, {Opt_nobarrier, "nobarrier"}, + {Opt_fastboot, "fastboot"}, {Opt_err, NULL}, }; @@ -351,6 +353,9 @@ static int parse_options(struct super_block *sb, char *options) case Opt_nobarrier: set_opt(sbi, NOBARRIER); break; + case Opt_fastboot: + set_opt(sbi, FASTBOOT); + break; default: f2fs_msg(sb, KERN_ERR, "Unrecognized mount option \"%s\" or missing value", @@ -479,9 +484,9 @@ int f2fs_sync_fs(struct super_block *sb, int sync) trace_f2fs_sync_fs(sb, sync); if (sync) { - struct cp_control cpc = { - .reason = CP_SYNC, - }; + struct cp_control cpc; + + cpc.reason = test_opt(sbi, FASTBOOT) ? CP_UMOUNT : CP_SYNC; mutex_lock(&sbi->gc_mutex); write_checkpoint(sbi, &cpc); mutex_unlock(&sbi->gc_mutex); @@ -574,6 +579,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) seq_puts(seq, ",flush_merge"); if (test_opt(sbi, NOBARRIER)) seq_puts(seq, ",nobarrier"); + if (test_opt(sbi, FASTBOOT)) + seq_puts(seq, ",fastboot"); seq_printf(seq, ",active_logs=%u", sbi->active_logs); return 0; |