[PATCH 23/24] fs: Remove SB_I_DYNBDI flag
From: Jan Kara <jack@suse.cz>
Date: 2017-02-02 17:36:01
Also in:
linux-fsdevel
Subsystem:
filesystems (vfs and infrastructure), gfs2 file system, memory technology devices (mtd), nfs, sunrpc, and lockd clients, nilfs2 filesystem, the rest · Maintainers:
Alexander Viro, Christian Brauner, Andreas Gruenbacher, Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Trond Myklebust, Anna Schumaker, Ryusuke Konishi, Viacheslav Dubeyko, Linus Torvalds
Now that all bdi structures filesystems use are properly refcounted, we can remove the SB_I_DYNBDI flag. Signed-off-by: Jan Kara <jack@suse.cz> --- drivers/mtd/mtdsuper.c | 1 - fs/gfs2/ops_fstype.c | 1 - fs/nfs/super.c | 1 - fs/nilfs2/super.c | 1 - fs/super.c | 5 +---- include/linux/fs.h | 3 --- 6 files changed, 1 insertion(+), 11 deletions(-)
diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c
index e69e7855e31f..e43fea896d1e 100644
--- a/drivers/mtd/mtdsuper.c
+++ b/drivers/mtd/mtdsuper.c@@ -53,7 +53,6 @@ static int get_sb_mtd_set(struct super_block *sb, void *_mtd) sb->s_mtd = mtd; sb->s_dev = MKDEV(MTD_BLOCK_MAJOR, mtd->index); sb->s_bdi = bdi_get(mtd_bdi); - sb->s_iflags |= SB_I_DYNBDI; return 0; }
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index fe8248f8b54b..79716e24f923 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c@@ -1223,7 +1223,6 @@ static int set_gfs2_super(struct super_block *s, void *data) s->s_bdev = data; s->s_dev = s->s_bdev->bd_dev; s->s_bdi = bdi_get(s->s_bdev->bd_bdi); - s->s_iflags |= SB_I_DYNBDI; return 0; }
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 16f4d92a96ec..0eca0fcf635f 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c@@ -2386,7 +2386,6 @@ int nfs_clone_super(struct super_block *sb, struct nfs_mount_info *mount_info) nfs_initialise_sb(sb); sb->s_bdi = bdi_get(old_sb->s_bdi); - sb->s_iflags |= SB_I_DYNBDI; return 0; }
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index feb796a38b8d..926682981d61 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c@@ -1069,7 +1069,6 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent) sb->s_max_links = NILFS_LINK_MAX; sb->s_bdi = bdi_get(sb->s_bdev->bd_bdi); - sb->s_iflags |= SB_I_DYNBDI; err = load_nilfs(nilfs, sb); if (err)
diff --git a/fs/super.c b/fs/super.c
index dfb95ccd4351..76c1daf611dc 100644
--- a/fs/super.c
+++ b/fs/super.c@@ -446,10 +446,9 @@ void generic_shutdown_super(struct super_block *sb) hlist_del_init(&sb->s_instances); spin_unlock(&sb_lock); up_write(&sb->s_umount); - if (sb->s_iflags & SB_I_DYNBDI) { + if (sb->s_bdi != &noop_backing_dev_info) { bdi_put(sb->s_bdi); sb->s_bdi = &noop_backing_dev_info; - sb->s_iflags &= ~SB_I_DYNBDI; } }
@@ -1048,7 +1047,6 @@ static int set_bdev_super(struct super_block *s, void *data) s->s_bdev = data; s->s_dev = s->s_bdev->bd_dev; s->s_bdi = bdi_get(s->s_bdev->bd_bdi); - s->s_iflags |= SB_I_DYNBDI; return 0; }
@@ -1275,7 +1273,6 @@ int super_setup_bdi_name(struct super_block *sb, char *fmt, ...) } WARN_ON(sb->s_bdi != &noop_backing_dev_info); sb->s_bdi = bdi; - sb->s_iflags |= SB_I_DYNBDI; return 0; }
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 8ed8b6d1bc54..409e2bba424f 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h@@ -1267,9 +1267,6 @@ struct mm_struct; /* sb->s_iflags to limit user namespace mounts */ #define SB_I_USERNS_VISIBLE 0x00000010 /* fstype already mounted */ -/* Temporary flag until all filesystems are converted to dynamic bdis */ -#define SB_I_DYNBDI 0x00000100 - /* Possible states of 'frozen' field */ enum { SB_UNFROZEN = 0, /* FS is unfrozen */
--
2.10.2