diff options
| author | David Woodhouse <dwmw2@shinybook.infradead.org> | 2005-07-13 15:25:59 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw2@shinybook.infradead.org> | 2005-07-13 15:25:59 +0100 |
| commit | 30beab1491f0b96b2f23d3fb68af01fd921a16d8 (patch) | |
| tree | c580bdc0846269fbb10feeda901ecec1a48ee2ef /fs/ext2 | |
| parent | 21af6c4f2aa5f63138871b4ddd77d7ebf2588c9d (diff) | |
| parent | c32511e2718618f0b53479eb36e07439aa363a74 (diff) | |
Merge with /shiny/git/linux-2.6/.git
Diffstat (limited to 'fs/ext2')
| -rw-r--r-- | fs/ext2/ext2.h | 9 | ||||
| -rw-r--r-- | fs/ext2/super.c | 24 |
2 files changed, 30 insertions, 3 deletions
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h index eed521d22cf..e977f8566d1 100644 --- a/fs/ext2/ext2.h +++ b/fs/ext2/ext2.h @@ -2,6 +2,15 @@ #include <linux/ext2_fs.h> /* + * ext2 mount options + */ +struct ext2_mount_options { + unsigned long s_mount_opt; + uid_t s_resuid; + gid_t s_resgid; +}; + +/* * second extended file system inode data in memory */ struct ext2_inode_info { diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 876e391f287..dcfe331dc4c 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -936,12 +936,23 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data) struct ext2_sb_info * sbi = EXT2_SB(sb); struct ext2_super_block * es; unsigned long old_mount_opt = sbi->s_mount_opt; + struct ext2_mount_options old_opts; + unsigned long old_sb_flags; + int err; + + /* Store the old options */ + old_sb_flags = sb->s_flags; + old_opts.s_mount_opt = sbi->s_mount_opt; + old_opts.s_resuid = sbi->s_resuid; + old_opts.s_resgid = sbi->s_resgid; /* * Allow the "check" option to be passed as a remount option. */ - if (!parse_options (data, sbi)) - return -EINVAL; + if (!parse_options (data, sbi)) { + err = -EINVAL; + goto restore_opts; + } sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | ((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); @@ -971,7 +982,8 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data) printk("EXT2-fs: %s: couldn't remount RDWR because of " "unsupported optional features (%x).\n", sb->s_id, le32_to_cpu(ret)); - return -EROFS; + err = -EROFS; + goto restore_opts; } /* * Mounting a RDONLY partition read-write, so reread and @@ -984,6 +996,12 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data) } ext2_sync_super(sb, es); return 0; +restore_opts: + sbi->s_mount_opt = old_opts.s_mount_opt; + sbi->s_resuid = old_opts.s_resuid; + sbi->s_resgid = old_opts.s_resgid; + sb->s_flags = old_sb_flags; + return err; } static int ext2_statfs (struct super_block * sb, struct kstatfs * buf) |