From: Sukadev Bhattiprolu Date: Sat, 7 Mar 2009 18:16:20 +0000 (-0800) Subject: Unroll essentials of do_remount_sb() into devpts X-Git-Tag: v2.6.30-rc1~647^2~5 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fdbf5348661ac9d519164d1489f30cc0384fda58;p=pandora-kernel.git Unroll essentials of do_remount_sb() into devpts On remount, devpts fs only needs to parse the mount options. Users cannot directly create/dirty files in /dev/pts so the MS_RDONLY flag and shrinking the dcache does not really apply to devpts. So effectively on remount, devpts only parses the mount options and updates these options in its super block. As such, we could replace do_remount_sb() call with a direct parse_mount_options(). Doing so enables subsequent patches to avoid parsing the mount options twice and simplify the code. Signed-off-by: Sukadev Bhattiprolu Acked-by: Serge Hallyn Signed-off-by: Al Viro --- diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index b0a76340a4cd..fb4da9d89130 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c @@ -437,6 +437,8 @@ static int get_init_pts_sb(struct file_system_type *fs_type, int flags, void *data, struct vfsmount *mnt) { struct super_block *s; + struct pts_mount_opts *opts; + struct pts_fs_info *fsi; int error; s = sget(fs_type, compare_init_pts_sb, set_anon_super, NULL); @@ -453,7 +455,10 @@ static int get_init_pts_sb(struct file_system_type *fs_type, int flags, } s->s_flags |= MS_ACTIVE; } - do_remount_sb(s, flags, data, 0); + fsi = DEVPTS_SB(s); + opts = &fsi->mount_opts; + parse_mount_options(data, PARSE_REMOUNT, opts); + simple_set_mnt(mnt, s); return 0; }