linux-kernel - Re: [PATCH] f2fs-tools: fall back to the original version check when clock

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Message-ID: <YVOCEn9xHmHmJdDI@google.com>
Date:   Tue, 28 Sep 2021 13:58:58 -0700
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     Daeho Jeong <daeho43@...il.com>
Cc:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, kernel-team@...roid.com,
        Daeho Jeong <daehojeong@...gle.com>
Subject: Re: [PATCH] f2fs-tools: fall back to the original version check when
 clock_gettime is not supported

Merged to address android build breakage.

On 09/28, Daeho Jeong wrote:
> From: Daeho Jeong <daehojeong@...gle.com>
> 
> In lower versions than macOS 10.12, they don't support clock_gettime
> function. It breaks the build, so we need to fall back to the original
> kernel version check algorithm, in that case.
> 
> Signed-off-by: Daeho Jeong <daehojeong@...gle.com>
> ---
>  fsck/mount.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/fsck/mount.c b/fsck/mount.c
> index 7c4c681..c928a15 100644
> --- a/fsck/mount.c
> +++ b/fsck/mount.c
> @@ -975,6 +975,16 @@ 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 defined(__APPLE__)
> +		if (!c.no_kernel_check &&
> +			memcmp(c.sb_version, c.version,	VERSION_NAME_LEN)) {
> +			c.auto_fix = 0;
> +			c.fix_on = 1;
> +			memcpy(sbi->raw_super->version,
> +					c.version, VERSION_NAME_LEN);
> +			update_superblock(sbi->raw_super, SB_MASK(sb_addr));
> +		}
> +#else
>  		if (!c.no_kernel_check) {
>  			struct timespec t;
>  			u32 prev_time, cur_time, time_diff;
> @@ -1007,6 +1017,7 @@ int validate_super_block(struct f2fs_sb_info *sbi, enum SB_ADDR sb_addr)
>  			update_superblock(sbi->raw_super, SB_MASK(sb_addr));
>  		}
>  out:
> +#endif
>  		print_sb_state(sbi->raw_super);
>  		return 0;
>  	}
> -- 
> 2.33.0.685.g46640cef36-goog