Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull mount flag updates from Al Viro:
 "Another chunk of fmount preparations from dhowells; only trivial
  conflicts for that part. It separates MS_... bits (very grotty
  mount(2) ABI) from the struct super_block ->s_flags (kernel-internal,
  only a small subset of MS_... stuff).

  This does *not* convert the filesystems to new constants; only the
  infrastructure is done here. The next step in that series is where the
  conflicts would be; that's the conversion of filesystems. It's purely
  mechanical and it's better done after the merge, so if you could run
  something like

	list=$(for i in MS_RDONLY MS_NOSUID MS_NODEV MS_NOEXEC MS_SYNCHRONOUS MS_MANDLOCK MS_DIRSYNC MS_NOATIME MS_NODIRATIME MS_SILENT MS_POSIXACL MS_KERNMOUNT MS_I_VERSION MS_LAZYTIME; do git grep -l $i fs drivers/staging/lustre drivers/mtd ipc mm include/linux; done|sort|uniq|grep -v '^fs/namespace.c$')

	sed -i -e 's/\<MS_RDONLY\>/SB_RDONLY/g' \
	        -e 's/\<MS_NOSUID\>/SB_NOSUID/g' \
	        -e 's/\<MS_NODEV\>/SB_NODEV/g' \
	        -e 's/\<MS_NOEXEC\>/SB_NOEXEC/g' \
	        -e 's/\<MS_SYNCHRONOUS\>/SB_SYNCHRONOUS/g' \
	        -e 's/\<MS_MANDLOCK\>/SB_MANDLOCK/g' \
	        -e 's/\<MS_DIRSYNC\>/SB_DIRSYNC/g' \
	        -e 's/\<MS_NOATIME\>/SB_NOATIME/g' \
	        -e 's/\<MS_NODIRATIME\>/SB_NODIRATIME/g' \
	        -e 's/\<MS_SILENT\>/SB_SILENT/g' \
	        -e 's/\<MS_POSIXACL\>/SB_POSIXACL/g' \
	        -e 's/\<MS_KERNMOUNT\>/SB_KERNMOUNT/g' \
	        -e 's/\<MS_I_VERSION\>/SB_I_VERSION/g' \
	        -e 's/\<MS_LAZYTIME\>/SB_LAZYTIME/g' \
	        $list

  and commit it with something along the lines of 'convert filesystems
  away from use of MS_... constants' as commit message, it would save a
  quite a bit of headache next cycle"

* 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  VFS: Differentiate mount flags (MS_*) from internal superblock flags
  VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
  vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags

1 files changed, 6 insertions, 6 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index b6dc1d179d23..487bbe4fb3c6 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2478,7 +2478,7 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info,
                 return ret;
         }
 
-        if (fs_info->sb->s_flags & MS_RDONLY) {
+        if (sb_rdonly(fs_info->sb)) {
                 ret = btrfs_commit_super(fs_info);
                 if (ret)
                         return ret;
@@ -2876,7 +2876,7 @@ int open_ctree(struct super_block *sb,
 
         features = btrfs_super_compat_ro_flags(disk_super) &
                 ~BTRFS_FEATURE_COMPAT_RO_SUPP;
-        if (!(sb->s_flags & MS_RDONLY) && features) {
+        if (!sb_rdonly(sb) && features) {
                 btrfs_err(fs_info,
         "cannot mount read-write because of unsupported optional features (%llx)",
                        features);
@@ -3038,7 +3038,7 @@ retry_root_backup:
                 goto fail_sysfs;
         }
 
-        if (!(sb->s_flags & MS_RDONLY) && !btrfs_check_rw_degradable(fs_info)) {
+        if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info)) {
                 btrfs_warn(fs_info,
                 "writeable mount is not allowed due to too many missing devices");
                 goto fail_sysfs;
@@ -3097,7 +3097,7 @@ retry_root_backup:
         if (ret)
                 goto fail_qgroup;
 
-        if (!(sb->s_flags & MS_RDONLY)) {
+        if (!sb_rdonly(sb)) {
                 ret = btrfs_cleanup_fs_roots(fs_info);
                 if (ret)
                         goto fail_qgroup;
@@ -3123,7 +3123,7 @@ retry_root_backup:
                 goto fail_qgroup;
         }
 
-        if (sb->s_flags & MS_RDONLY)
+        if (sb_rdonly(sb))
                 return 0;
 
         if (btrfs_test_opt(fs_info, CLEAR_CACHE) &&
@@ -3878,7 +3878,7 @@ void close_ctree(struct btrfs_fs_info *fs_info)
 
         cancel_work_sync(&fs_info->async_reclaim_work);
 
-        if (!(fs_info->sb->s_flags & MS_RDONLY)) {
+        if (!sb_rdonly(fs_info->sb)) {
                 /*
                  * If the cleaner thread is stopped and there are
                  * block groups queued for removal, the deletion will be