[PATCH 15/24] coda: Convert to separately allocated bdi
From: Jan Kara <jack@suse.cz>
Date: 2017-02-02 17:36:04
Also in:
linux-fsdevel
Subsystem:
coda file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Jan Harkes, Alexander Viro, Christian Brauner, Linus Torvalds
Allocate struct backing_dev_info separately instead of embedding it inside the superblock. This unifies handling of bdi among users. CC: Jan Harkes <jaharkes@cs.cmu.edu> CC: coda@cs.cmu.edu CC: codalist@coda.cs.cmu.edu Signed-off-by: Jan Kara <jack@suse.cz> --- fs/coda/inode.c | 11 ++++------- include/linux/coda_psdev.h | 1 - 2 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 71dbe7e287ce..b72eb96f3f96 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c@@ -183,10 +183,6 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent) goto unlock_out; } - error = bdi_setup_and_register(&vc->bdi, "coda"); - if (error) - goto unlock_out; - vc->vc_sb = sb; mutex_unlock(&vc->vc_mutex);
@@ -197,7 +193,10 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent) sb->s_magic = CODA_SUPER_MAGIC; sb->s_op = &coda_super_operations; sb->s_d_op = &coda_dentry_operations; - sb->s_bdi = &vc->bdi; + + error = super_setup_bdi(sb); + if (error) + goto error; /* get root fid from Venus: this needs the root inode */ error = venus_rootfid(sb, &fid);
@@ -228,7 +227,6 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent) error: mutex_lock(&vc->vc_mutex); - bdi_destroy(&vc->bdi); vc->vc_sb = NULL; sb->s_fs_info = NULL; unlock_out:
@@ -240,7 +238,6 @@ static void coda_put_super(struct super_block *sb) { struct venus_comm *vcp = coda_vcp(sb); mutex_lock(&vcp->vc_mutex); - bdi_destroy(&vcp->bdi); vcp->vc_sb = NULL; sb->s_fs_info = NULL; mutex_unlock(&vcp->vc_mutex);
diff --git a/include/linux/coda_psdev.h b/include/linux/coda_psdev.h
index 5b8721efa948..31e4e1f1547c 100644
--- a/include/linux/coda_psdev.h
+++ b/include/linux/coda_psdev.h@@ -15,7 +15,6 @@ struct venus_comm { struct list_head vc_processing; int vc_inuse; struct super_block *vc_sb; - struct backing_dev_info bdi; struct mutex vc_mutex; };
--
2.10.2