[PATCH 09/14] ocfs2: cleanup o2hb_region_dev_store
From: Christoph Hellwig <hch@lst.de>
Date: 2020-09-17 17:20:03
Also in:
linux-fsdevel, linux-ide, linux-mm, linux-pm, linux-s390, lkml, ocfs2-devel
Subsystem:
filesystems (vfs and infrastructure), oracle cluster filesystem 2 (ocfs2), the rest · Maintainers:
Alexander Viro, Christian Brauner, Mark Fasheh, Joel Becker, Joseph Qi, Linus Torvalds
Use blkdev_get_by_dev instead of igrab (aka open coded bdgrab) + blkdev_get. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/ocfs2/cluster/heartbeat.c | 28 ++++++++++------------------ 1 file changed, 10 insertions(+), 18 deletions(-)
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 89d13e0705fe7b..0179a73a3fa2c4 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c@@ -1766,7 +1766,6 @@ static ssize_t o2hb_region_dev_store(struct config_item *item, int sectsize; char *p = (char *)page; struct fd f; - struct inode *inode; ssize_t ret = -EINVAL; int live_threshold;
@@ -1793,20 +1792,16 @@ static ssize_t o2hb_region_dev_store(struct config_item *item, reg->hr_block_bytes == 0) goto out2; - inode = igrab(f.file->f_mapping->host); - if (inode == NULL) + if (!S_ISBLK(f.file->f_mapping->host->i_mode)) goto out2; - if (!S_ISBLK(inode->i_mode)) - goto out3; - - reg->hr_bdev = I_BDEV(f.file->f_mapping->host); - ret = blkdev_get(reg->hr_bdev, FMODE_WRITE | FMODE_READ, NULL); - if (ret) { + reg->hr_bdev = blkdev_get_by_dev(f.file->f_mapping->host->i_rdev, + FMODE_WRITE | FMODE_READ, NULL); + if (IS_ERR(reg->hr_bdev)) { + ret = PTR_ERR(reg->hr_bdev); reg->hr_bdev = NULL; - goto out3; + goto out2; } - inode = NULL; bdevname(reg->hr_bdev, reg->hr_dev_name);
@@ -1909,16 +1904,13 @@ static ssize_t o2hb_region_dev_store(struct config_item *item, config_item_name(®->hr_item), reg->hr_dev_name); out3: - iput(inode); + if (ret < 0) { + blkdev_put(reg->hr_bdev, FMODE_READ | FMODE_WRITE); + reg->hr_bdev = NULL; + } out2: fdput(f); out: - if (ret < 0) { - if (reg->hr_bdev) { - blkdev_put(reg->hr_bdev, FMODE_READ|FMODE_WRITE); - reg->hr_bdev = NULL; - } - } return ret; }
--
2.28.0