diff options
| author | Evgeniy Polyakov <zbr@ioremap.net> | 2010-02-03 01:04:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-03 16:42:40 -0800 |
| commit | 182374a0bddeef46769d2f8ab56fcccc433b96f3 (patch) | |
| tree | 374ec65d87f9c41f7e232e206ce53daf7a1748b1 /drivers/staging/pohmelfs | |
| parent | e3c0acf44d837d3095ab8222d3271f9ba0d3db44 (diff) | |
Staging: Fixed pohmelfs regression because of per-bdi writeback.
Since pohmelfs isn't tied to a single block device, it needs to setup a
backing dev like nfs/btrfs/etc do.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/pohmelfs')
| -rw-r--r-- | drivers/staging/pohmelfs/inode.c | 20 | ||||
| -rw-r--r-- | drivers/staging/pohmelfs/netfs.h | 3 |
2 files changed, 21 insertions, 2 deletions
diff --git a/drivers/staging/pohmelfs/inode.c b/drivers/staging/pohmelfs/inode.c index 6a978c8dd5d1..eec3798eaf25 100644 --- a/drivers/staging/pohmelfs/inode.c +++ b/drivers/staging/pohmelfs/inode.c @@ -36,6 +36,7 @@ #define POHMELFS_MAGIC_NUM 0x504f482e static struct kmem_cache *pohmelfs_inode_cache; +static atomic_t psb_bdi_num = ATOMIC_INIT(0); /* * Removes inode from all trees, drops local name cache and removes all queued @@ -1331,6 +1332,8 @@ static void pohmelfs_put_super(struct super_block *sb) pohmelfs_crypto_exit(psb); pohmelfs_state_exit(psb); + bdi_destroy(&psb->bdi); + kfree(psb); sb->s_fs_info = NULL; } @@ -1814,11 +1817,22 @@ static int pohmelfs_fill_super(struct super_block *sb, void *data, int silent) if (!psb) goto err_out_exit; + err = bdi_init(&psb->bdi); + if (err) + goto err_out_free_sb; + + err = bdi_register(&psb->bdi, NULL, "pfs-%d", atomic_inc_return(&psb_bdi_num)); + if (err) { + bdi_destroy(&psb->bdi); + goto err_out_free_sb; + } + sb->s_fs_info = psb; sb->s_op = &pohmelfs_sb_ops; sb->s_magic = POHMELFS_MAGIC_NUM; sb->s_maxbytes = MAX_LFS_FILESIZE; sb->s_blocksize = PAGE_SIZE; + sb->s_bdi = &psb->bdi; psb->sb = sb; @@ -1862,11 +1876,11 @@ static int pohmelfs_fill_super(struct super_block *sb, void *data, int silent) err = pohmelfs_parse_options((char *) data, psb, 0); if (err) - goto err_out_free_sb; + goto err_out_free_bdi; err = pohmelfs_copy_crypto(psb); if (err) - goto err_out_free_sb; + goto err_out_free_bdi; err = pohmelfs_state_init(psb); if (err) @@ -1915,6 +1929,8 @@ err_out_state_exit: err_out_free_strings: kfree(psb->cipher_string); kfree(psb->hash_string); +err_out_free_bdi: + bdi_destroy(&psb->bdi); err_out_free_sb: kfree(psb); err_out_exit: diff --git a/drivers/staging/pohmelfs/netfs.h b/drivers/staging/pohmelfs/netfs.h index 623a07d29dea..01cba006e07a 100644 --- a/drivers/staging/pohmelfs/netfs.h +++ b/drivers/staging/pohmelfs/netfs.h @@ -18,6 +18,7 @@ #include <linux/types.h> #include <linux/connector.h> +#include <linux/backing-dev.h> #define POHMELFS_CN_IDX 5 #define POHMELFS_CN_VAL 0 @@ -624,6 +625,8 @@ struct pohmelfs_sb { struct super_block *sb; + struct backing_dev_info bdi; + /* * Algorithm strings. */ |