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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 12:04:02 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 12:04:02 -0800
commitbac5e54c29f352d962a2447d22735316b347b9f1 (patch)
tree7642993fa93164835ffaa2dacd341388193f1979 /drivers
parent529e89430d6c0d64db8ac474cb95e68e2527c79a (diff)
parentc05c4edd876b7ae92787d1295868afcb89b6a348 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (38 commits) direct I/O fallback sync simplification ocfs: stop using do_sync_mapping_range cleanup blockdev_direct_IO locking make generic_acl slightly more generic sanitize xattr handler prototypes libfs: move EXPORT_SYMBOL for d_alloc_name vfs: force reval of target when following LAST_BIND symlinks (try #7) ima: limit imbalance msg Untangling ima mess, part 3: kill dead code in ima Untangling ima mess, part 2: deal with counters Untangling ima mess, part 1: alloc_file() O_TRUNC open shouldn't fail after file truncation ima: call ima_inode_free ima_inode_free IMA: clean up the IMA counts updating code ima: only insert at inode creation time ima: valid return code from ima_inode_alloc fs: move get_empty_filp() deffinition to internal.h Sanitize exec_permission_lite() Kill cached_lookup() and real_lookup() Kill path_lookup_open() ... Trivial conflicts in fs/direct-io.c
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/core/uverbs_main.c9
-rw-r--r--drivers/staging/dst/dcore.c46
2 files changed, 12 insertions, 43 deletions
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index aec0fbdfe7f0..5f284ffd430e 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -492,6 +492,7 @@ struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
int is_async, int *fd)
{
struct ib_uverbs_event_file *ev_file;
+ struct path path;
struct file *filp;
int ret;
@@ -519,8 +520,10 @@ struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
* system call on a uverbs file, which will already have a
* module reference.
*/
- filp = alloc_file(uverbs_event_mnt, dget(uverbs_event_mnt->mnt_root),
- FMODE_READ, fops_get(&uverbs_event_fops));
+ path.mnt = uverbs_event_mnt;
+ path.dentry = uverbs_event_mnt->mnt_root;
+ path_get(&path);
+ filp = alloc_file(&path, FMODE_READ, fops_get(&uverbs_event_fops));
if (!filp) {
ret = -ENFILE;
goto err_fd;
@@ -531,6 +534,8 @@ struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
return filp;
err_fd:
+ fops_put(&uverbs_event_fops);
+ path_put(&path);
put_unused_fd(*fd);
err:
diff --git a/drivers/staging/dst/dcore.c b/drivers/staging/dst/dcore.c
index fd5bd0ea1e0d..c83ca7e3d048 100644
--- a/drivers/staging/dst/dcore.c
+++ b/drivers/staging/dst/dcore.c
@@ -403,7 +403,7 @@ static void dst_node_cleanup(struct dst_node *n)
if (n->bdev) {
sync_blockdev(n->bdev);
- blkdev_put(n->bdev, FMODE_READ|FMODE_WRITE);
+ close_bdev_exclusive(n->bdev, FMODE_READ|FMODE_WRITE);
}
dst_state_lock(st);
@@ -464,37 +464,6 @@ void dst_node_put(struct dst_node *n)
}
/*
- * This function finds devices major/minor numbers for given pathname.
- */
-static int dst_lookup_device(const char *path, dev_t *dev)
-{
- int err;
- struct nameidata nd;
- struct inode *inode;
-
- err = path_lookup(path, LOOKUP_FOLLOW, &nd);
- if (err)
- return err;
-
- inode = nd.path.dentry->d_inode;
- if (!inode) {
- err = -ENOENT;
- goto out;
- }
-
- if (!S_ISBLK(inode->i_mode)) {
- err = -ENOTBLK;
- goto out;
- }
-
- *dev = inode->i_rdev;
-
-out:
- path_put(&nd.path);
- return err;
-}
-
-/*
* Setting up export device: lookup by the name, get its size
* and setup listening socket, which will accept clients, which
* will submit IO for given storage.
@@ -503,17 +472,12 @@ static int dst_setup_export(struct dst_node *n, struct dst_ctl *ctl,
struct dst_export_ctl *le)
{
int err;
- dev_t dev = 0; /* gcc likes to scream here */
snprintf(n->info->local, sizeof(n->info->local), "%s", le->device);
- err = dst_lookup_device(le->device, &dev);
- if (err)
- return err;
-
- n->bdev = open_by_devnum(dev, FMODE_READ|FMODE_WRITE);
- if (!n->bdev)
- return -ENODEV;
+ n->bdev = open_bdev_exclusive(le->device, FMODE_READ|FMODE_WRITE, NULL);
+ if (IS_ERR(n->bdev))
+ return PTR_ERR(n->bdev);
if (n->size != 0)
n->size = min_t(loff_t, n->bdev->bd_inode->i_size, n->size);
@@ -528,7 +492,7 @@ static int dst_setup_export(struct dst_node *n, struct dst_ctl *ctl,
return 0;
err_out_cleanup:
- blkdev_put(n->bdev, FMODE_READ|FMODE_WRITE);
+ close_bdev_exclusive(n->bdev, FMODE_READ|FMODE_WRITE);
n->bdev = NULL;
return err;