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sysv: do not mark superblock dirty on remount

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No need to mark the superblock as dirty in sysv_remount, synchronize
it instead (only if mounting R/O).

I did not find any docs about this file-system, and I have no possibility
to test my changes. Thus, this is untested. I see other issues in sysv,
e.g., why sysv_sync_fs writes only in the FSTYPE_SYSV4 case? However,
it marks its SB bh's dirty for all types, and does not wait for them
ever. With zero docs I'm unable to fix this.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Artem Bityutskiy 2010-07-05 15:15:04 +03:00 committed by Al Viro
parent 315671f3b8
commit 719f2c879f
1 changed files with 2 additions and 2 deletions
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4
fs/sysv/inode.c
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@ -71,8 +71,8 @@ static int sysv_remount(struct super_block *sb, int *flags, char *data)
lock_super(sb);
if (sbi->s_forced_ro)
*flags |= MS_RDONLY;
if (!(*flags & MS_RDONLY))
sb->s_dirt = 1;
if (*flags & MS_RDONLY)
sysv_write_super(sb);
unlock_super(sb);
return 0;
}