summaryrefslogtreecommitdiff
path: root/mm
diff options
context:
space:
mode:
authorJan Kara <jack@suse.cz>2023-09-27 11:34:24 +0200
committerChristian Brauner <brauner@kernel.org>2023-10-28 13:29:19 +0200
commit4c6bca43c547fe9bc1d7d1519b1d6430fee2cae2 (patch)
tree96cdc4592f7f7bdfd7e123546b8227f971d793b5 /mm
parent93745df18e52157778a8a74cb888ac785844a7fe (diff)
mm/swap: Convert to use bdev_open_by_dev()
Convert swapping code to use bdev_open_by_dev() and pass the handle around. CC: linux-mm@kvack.org CC: Andrew Morton <akpm@linux-foundation.org> Acked-by: Christoph Hellwig <hch@lst.de> Acked-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20230927093442.25915-18-jack@suse.cz Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/swapfile.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index e52f486834eb..4bc70f459164 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2530,11 +2530,10 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
exit_swap_address_space(p->type);
inode = mapping->host;
- if (S_ISBLK(inode->i_mode)) {
- struct block_device *bdev = I_BDEV(inode);
-
- set_blocksize(bdev, old_block_size);
- blkdev_put(bdev, p);
+ if (p->bdev_handle) {
+ set_blocksize(p->bdev, old_block_size);
+ bdev_release(p->bdev_handle);
+ p->bdev_handle = NULL;
}
inode_lock(inode);
@@ -2764,13 +2763,14 @@ static int claim_swapfile(struct swap_info_struct *p, struct inode *inode)
int error;
if (S_ISBLK(inode->i_mode)) {
- p->bdev = blkdev_get_by_dev(inode->i_rdev,
+ p->bdev_handle = bdev_open_by_dev(inode->i_rdev,
BLK_OPEN_READ | BLK_OPEN_WRITE, p, NULL);
- if (IS_ERR(p->bdev)) {
- error = PTR_ERR(p->bdev);
- p->bdev = NULL;
+ if (IS_ERR(p->bdev_handle)) {
+ error = PTR_ERR(p->bdev_handle);
+ p->bdev_handle = NULL;
return error;
}
+ p->bdev = p->bdev_handle->bdev;
p->old_block_size = block_size(p->bdev);
error = set_blocksize(p->bdev, PAGE_SIZE);
if (error < 0)
@@ -3206,9 +3206,10 @@ bad_swap:
p->percpu_cluster = NULL;
free_percpu(p->cluster_next_cpu);
p->cluster_next_cpu = NULL;
- if (inode && S_ISBLK(inode->i_mode) && p->bdev) {
+ if (p->bdev_handle) {
set_blocksize(p->bdev, p->old_block_size);
- blkdev_put(p->bdev, p);
+ bdev_release(p->bdev_handle);
+ p->bdev_handle = NULL;
}
inode = NULL;
destroy_swap_extents(p);