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| author | Jens Axboe <jens.axboe@oracle.com> | 2010-04-22 12:09:48 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2010-04-22 12:09:48 +0200 |
| commit | 8044f7f468469c80031611206d554f86fcdfe704 (patch) | |
| tree | addf1e66fbd891c46388b25d1f072a67fed69c16 /fs/cifs/cifsfs.c | |
| parent | e1da0222753a2322d76c97fc02396fb83143c7ac (diff) | |
| download | lwn-8044f7f468469c80031611206d554f86fcdfe704.tar.gz lwn-8044f7f468469c80031611206d554f86fcdfe704.zip | |
cifs: add bdi backing to mount session
This ensures that dirty data gets flushed properly.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/cifs/cifsfs.c')
| -rw-r--r-- | fs/cifs/cifsfs.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index ded66be6597c..ad235d604a0b 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -103,6 +103,12 @@ cifs_read_super(struct super_block *sb, void *data, if (cifs_sb == NULL) return -ENOMEM; + rc = bdi_setup_and_register(&cifs_sb->bdi, "cifs", BDI_CAP_MAP_COPY); + if (rc) { + kfree(cifs_sb); + return rc; + } + #ifdef CONFIG_CIFS_DFS_UPCALL /* copy mount params to sb for use in submounts */ /* BB: should we move this after the mount so we @@ -115,6 +121,7 @@ cifs_read_super(struct super_block *sb, void *data, int len = strlen(data); cifs_sb->mountdata = kzalloc(len + 1, GFP_KERNEL); if (cifs_sb->mountdata == NULL) { + bdi_destroy(&cifs_sb->bdi); kfree(sb->s_fs_info); sb->s_fs_info = NULL; return -ENOMEM; @@ -135,6 +142,7 @@ cifs_read_super(struct super_block *sb, void *data, sb->s_magic = CIFS_MAGIC_NUMBER; sb->s_op = &cifs_super_ops; + sb->s_bdi = &cifs_sb->bdi; /* if (cifs_sb->tcon->ses->server->maxBuf > MAX_CIFS_HDR_SIZE + 512) sb->s_blocksize = cifs_sb->tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE; */ @@ -183,6 +191,7 @@ out_mount_failed: } #endif unload_nls(cifs_sb->local_nls); + bdi_destroy(&cifs_sb->bdi); kfree(cifs_sb); } return rc; @@ -214,6 +223,7 @@ cifs_put_super(struct super_block *sb) #endif unload_nls(cifs_sb->local_nls); + bdi_destroy(&cifs_sb->bdi); kfree(cifs_sb); unlock_kernel(); |