R0dn3yS/android_kernel_xiaomi_sm7250
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

f2fs: add barrier mount option

Browse Source 
This patch adds a mount option, barrier, in f2fs.
The barrier option is the opposite of nobarrier.
If this option is set, cache_flush commands are allowed to be issued.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Yangtao Li 2022-10-25 01:54:01 +08:00 committed by Jaegeuk Kim
parent 005389bc43
commit 60f9e58b4c
2 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/filesystems/f2fs.rst
View File

@ -154,6 +154,8 @@ nobarrier This option can be used if underlying storage guarantees
If this option is set, no cache_flush commands are issued If this option is set, no cache_flush commands are issued
but f2fs still guarantees the write ordering of all the but f2fs still guarantees the write ordering of all the
data writes. data writes.
barrier If this option is set, cache_flush commands are allowed to be
issued.
fastboot This option is used when a system wants to reduce mount fastboot This option is used when a system wants to reduce mount
time as much as possible, even though normal performance time as much as possible, even though normal performance
can be sacrificed. can be sacrificed.

7
fs/f2fs/super.c
View File

@ -109,6 +109,7 @@ enum {
Opt_noinline_dentry, Opt_noinline_dentry,
Opt_flush_merge, Opt_flush_merge,
Opt_noflush_merge, Opt_noflush_merge,
Opt_barrier,
Opt_nobarrier, Opt_nobarrier,
Opt_fastboot, Opt_fastboot,
Opt_extent_cache, Opt_extent_cache,
@ -184,6 +185,7 @@ static match_table_t f2fs_tokens = {
{Opt_noinline_dentry, "noinline_dentry"}, {Opt_noinline_dentry, "noinline_dentry"},
{Opt_flush_merge, "flush_merge"}, {Opt_flush_merge, "flush_merge"},
{Opt_noflush_merge, "noflush_merge"}, {Opt_noflush_merge, "noflush_merge"},
{Opt_barrier, "barrier"},
{Opt_nobarrier, "nobarrier"}, {Opt_nobarrier, "nobarrier"},
{Opt_fastboot, "fastboot"}, {Opt_fastboot, "fastboot"},
{Opt_extent_cache, "extent_cache"}, {Opt_extent_cache, "extent_cache"},
@ -798,6 +800,9 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
case Opt_nobarrier: case Opt_nobarrier:
set_opt(sbi, NOBARRIER); set_opt(sbi, NOBARRIER);
break; break;
case Opt_barrier:
clear_opt(sbi, NOBARRIER);
break;
case Opt_fastboot: case Opt_fastboot:
set_opt(sbi, FASTBOOT); set_opt(sbi, FASTBOOT);
break; break;
@ -1924,6 +1929,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
seq_puts(seq, ",flush_merge"); seq_puts(seq, ",flush_merge");
if (test_opt(sbi, NOBARRIER)) if (test_opt(sbi, NOBARRIER))
seq_puts(seq, ",nobarrier"); seq_puts(seq, ",nobarrier");
else
seq_puts(seq, ",barrier");
if (test_opt(sbi, FASTBOOT)) if (test_opt(sbi, FASTBOOT))
seq_puts(seq, ",fastboot"); seq_puts(seq, ",fastboot");
if (test_opt(sbi, EXTENT_CACHE)) if (test_opt(sbi, EXTENT_CACHE))