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Linux 6.9 compat: bdev handles are now struct file

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bdev_open_by_path() is replaced by bdev_file_open_by_path(), which
returns a plain old struct file*. Release function is gone entirely; the
regular file release function fput() will take care of the bdev
specifics.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/
Closes #16027
Closes #16033
This commit is contained in:
Rob Norris
2024-03-27 10:07:50 +11:00
committed by Brian Behlendorf
parent 917ff75e95
commit e3120f73d0
2 changed files with 60 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/os/linux/zfs/vdev_disk.c
+19 -5
View File
@@ -45,15 +45,25 @@
/*
* Linux 6.8.x uses a bdev_handle as an instance/refcount for an underlying
* block_device. Since it carries the block_device inside, its convenient to
* just use the handle as a proxy. For pre-6.8, we just emulate this with
* a cast, since we don't need any of the other fields inside the handle.
* just use the handle as a proxy.
*
* Linux 6.9.x uses a file for the same purpose.
*
* For pre-6.8, we just emulate this with a cast, since we don't need any of
* the other fields inside the handle.
*/
#ifdef HAVE_BDEV_OPEN_BY_PATH
#if defined(HAVE_BDEV_OPEN_BY_PATH)
typedef struct bdev_handle zfs_bdev_handle_t;
#define BDH_BDEV(bdh) ((bdh)->bdev)
#define BDH_IS_ERR(bdh) (IS_ERR(bdh))
#define BDH_PTR_ERR(bdh) (PTR_ERR(bdh))
#define BDH_ERR_PTR(err) (ERR_PTR(err))
#elif defined(HAVE_BDEV_FILE_OPEN_BY_PATH)
typedef struct file zfs_bdev_handle_t;
#define BDH_BDEV(bdh) (file_bdev(bdh))
#define BDH_IS_ERR(bdh) (IS_ERR(bdh))
#define BDH_PTR_ERR(bdh) (PTR_ERR(bdh))
#define BDH_ERR_PTR(err) (ERR_PTR(err))
#else
typedef void zfs_bdev_handle_t;
#define BDH_BDEV(bdh) ((struct block_device *)bdh)
@@ -242,7 +252,9 @@ vdev_blkdev_get_by_path(const char *path, spa_mode_t smode, void *holder)
{
vdev_bdev_mode_t bmode = vdev_bdev_mode(smode);
#if defined(HAVE_BDEV_OPEN_BY_PATH)
#if defined(HAVE_BDEV_FILE_OPEN_BY_PATH)
return (bdev_file_open_by_path(path, bmode, holder, NULL));
#elif defined(HAVE_BDEV_OPEN_BY_PATH)
return (bdev_open_by_path(path, bmode, holder, NULL));
#elif defined(HAVE_BLKDEV_GET_BY_PATH_4ARG)
return (blkdev_get_by_path(path, bmode, holder, NULL));
@@ -258,8 +270,10 @@ vdev_blkdev_put(zfs_bdev_handle_t *bdh, spa_mode_t smode, void *holder)
return (bdev_release(bdh));
#elif defined(HAVE_BLKDEV_PUT_HOLDER)
return (blkdev_put(BDH_BDEV(bdh), holder));
#else
#elif defined(HAVE_BLKDEV_PUT)
return (blkdev_put(BDH_BDEV(bdh), vdev_bdev_mode(smode)));
#else
fput(bdh);
#endif
}