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authorJan Kara <jack@suse.cz>2017-04-12 12:24:47 +0200
committerJens Axboe <axboe@fb.com>2017-04-20 12:09:55 -0600
commitc1844d536dafa5f2cddf4b4841a3634f80a27666 (patch)
treecd45b315f2d205fa9f34a4cdb22a1511f1c39f65
parent99edd4580b7444f57d7494e6433cdbdb08d5a19d (diff)
fs: Remove SB_I_DYNBDI flag
Now that all bdi structures filesystems use are properly refcounted, we can remove the SB_I_DYNBDI flag. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
-rw-r--r--drivers/mtd/mtdsuper.c1
-rw-r--r--fs/gfs2/ops_fstype.c1
-rw-r--r--fs/nfs/super.c1
-rw-r--r--fs/nilfs2/super.c1
-rw-r--r--fs/super.c5
-rw-r--r--include/linux/fs.h3
6 files changed, 1 insertions, 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 e6b6f97d0fc1..ed67548b286c 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -1224,7 +1224,6 @@ 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 8d97aa70407e..dc69314d455e 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2379,7 +2379,6 @@ 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 e267d3a00144..8444d26926ef 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;
}
}
@@ -1055,7 +1054,6 @@ 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;
}
@@ -1282,7 +1280,6 @@ 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 98cf14ea78c0..30e5c14bd743 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1272,9 +1272,6 @@ 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 */