Allocate struct backing_dev_info separately instead of embedding it
inside the superblock. This unifies handling of bdi among users.
CC: David Howells <dhowells@xxxxxxxxxx>
CC: linux-afs@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Jan Kara <jack@xxxxxxx>
---
fs/afs/internal.h | 1 -
fs/afs/super.c | 4 +++-
fs/afs/volume.c | 7 -------
3 files changed, 3 insertions(+), 9 deletions(-)
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 535a38d2c1d0..f8d52c36e6ec 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -310,7 +310,6 @@ struct afs_volume {
unsigned short rjservers; /* number of servers discarded due to -ENOMEDIUM */
struct afs_server *servers[8]; /* servers on which volume resides (ordered) */
struct rw_semaphore server_sem; /* lock for accessing current server */
- struct backing_dev_info bdi;
};
/*
diff --git a/fs/afs/super.c b/fs/afs/super.c
index fbdb022b75a2..3bae29cd277f 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -319,7 +319,9 @@ static int afs_fill_super(struct super_block *sb,
sb->s_blocksize_bits = PAGE_SHIFT;
sb->s_magic = AFS_FS_MAGIC;
sb->s_op = &afs_super_ops;
- sb->s_bdi = &as->volume->bdi;
+ ret = super_setup_bdi(sb);
+ if (ret)
+ return ret;
strlcpy(sb->s_id, as->volume->vlocation->vldb.name, sizeof(sb->s_id));
/* allocate the root inode and dentry */
diff --git a/fs/afs/volume.c b/fs/afs/volume.c
index d142a2449e65..db73d6dad02b 100644
--- a/fs/afs/volume.c
+++ b/fs/afs/volume.c
@@ -106,10 +106,6 @@ struct afs_volume *afs_volume_lookup(struct afs_mount_params *params)
volume->cell = params->cell;
volume->vid = vlocation->vldb.vid[params->type];
- ret = bdi_setup_and_register(&volume->bdi, "afs");
- if (ret)
- goto error_bdi;
-
init_rwsem(&volume->server_sem);
/* look up all the applicable server records */
@@ -155,8 +151,6 @@ struct afs_volume *afs_volume_lookup(struct afs_mount_params *params)
return ERR_PTR(ret);
error_discard:
- bdi_destroy(&volume->bdi);
-error_bdi:
up_write(¶ms->cell->vl_sem);
for (loop = volume->nservers - 1; loop >= 0; loop--)
@@ -206,7 +200,6 @@ void afs_put_volume(struct afs_volume *volume)
for (loop = volume->nservers - 1; loop >= 0; loop--)
afs_put_server(volume->servers[loop]);
- bdi_destroy(&volume->bdi);
kfree(volume);
_leave(" [destroyed]");
--
2.10.2
--
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