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fsck.f2fs: add --{no-}kernel-check to bypass kernel version diff or not

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Given this option, fsck.f2fs does not run fsck forcefully, even if kernel
is updated. Android devices will do --kernel-check by default, while others
will not.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2019-10-14 10:10:31 -07:00
parent f0f29da924
commit 1126e38155
4 changed files with 18 additions and 1 deletions
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12
fsck/main.c
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@ -66,6 +66,8 @@ void fsck_usage()
MSG(0, " -y fix all the time\n");
MSG(0, " -V print the version number and exit\n");
MSG(0, " --dry-run do not really fix corruptions\n");
MSG(0, " --no-kernel-check skips detecting kernel change\n");
MSG(0, " --kernel-check checks kernel change\n");
exit(1);
}
@ -192,6 +194,8 @@ void f2fs_parse_options(int argc, char *argv[])
char *token;
struct option long_opt[] = {
{"dry-run", no_argument, 0, 1},
{"no-kernel-check", no_argument, 0, 2},
{"kernel-check", no_argument, 0, 3},
{0, 0, 0, 0}
};
@ -203,6 +207,14 @@ void f2fs_parse_options(int argc, char *argv[])
c.dry_run = 1;
MSG(0, "Info: Dry run\n");
break;
case 2:
c.no_kernel_check = 1;
MSG(0, "Info: No Kernel Check\n");
break;
case 3:
c.no_kernel_check = 0;
MSG(0, "Info: Do Kernel Check\n");
break;
case 'a':
c.auto_fix = 1;
MSG(0, "Info: Fix the reported corruption.\n");

3
fsck/mount.c
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@ -872,7 +872,8 @@ int validate_super_block(struct f2fs_sb_info *sbi, enum SB_ADDR sb_addr)
MSG(0, "Info: MKFS version\n \"%s\"\n", c.init_version);
MSG(0, "Info: FSCK version\n from \"%s\"\n to \"%s\"\n",
c.sb_version, c.version);
if (memcmp(c.sb_version, c.version, VERSION_LEN)) {
if (!c.no_kernel_check &&
memcmp(c.sb_version, c.version, VERSION_LEN)) {
memcpy(sbi->raw_super->version,
c.version, VERSION_LEN);
update_superblock(sbi->raw_super, SB_MASK(sb_addr));

1
include/f2fs_fs.h
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@ -375,6 +375,7 @@ struct f2fs_configuration {
int func;
void *private;
int dry_run;
int no_kernel_check;
int fix_on;
int force;
int defset;

3
lib/libf2fs.c
View File

@ -655,6 +655,9 @@ void f2fs_init_configuration(void)
c.wanted_sector_size = -1;
#ifndef WITH_ANDROID
c.preserve_limits = 1;
c.no_kernel_check = 1;
#else
c.no_kernel_check = 0;
#endif
for (i = 0; i < MAX_DEVICES; i++) {