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authorJan Kara <jack@suse.cz>2017-04-12 12:24:34 +0200
committerJens Axboe <axboe@fb.com>2017-04-20 12:09:55 -0600
commit851ea0860986961f32774e34753ad80e5fd545a1 (patch)
tree4f7cc8ab9a751cb2a35d981686ee1fbb6efc98ff /fs/cifs/cifsfs.c
parent09dc9fc24ba714a6d29349e49ec616edcb3ce560 (diff)
cifs: Convert to separately allocated bdi
Allocate struct backing_dev_info separately instead of embedding it inside superblock. This unifies handling of bdi among users. CC: Steve French <sfrench@samba.org> CC: linux-cifs@vger.kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/cifs/cifsfs.c')
-rw-r--r--fs/cifs/cifsfs.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 15e1db8738ae..502eab6bdbc4 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -138,7 +138,12 @@ cifs_read_super(struct super_block *sb)
sb->s_magic = CIFS_MAGIC_NUMBER;
sb->s_op = &cifs_super_ops;
sb->s_xattr = cifs_xattr_handlers;
- sb->s_bdi = &cifs_sb->bdi;
+ rc = super_setup_bdi(sb);
+ if (rc)
+ goto out_no_root;
+ /* tune readahead according to rsize */
+ sb->s_bdi->ra_pages = cifs_sb->rsize / PAGE_SIZE;
+
sb->s_blocksize = CIFS_MAX_MSGSIZE;
sb->s_blocksize_bits = 14; /* default 2**14 = CIFS_MAX_MSGSIZE */
inode = cifs_root_iget(sb);