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authorChristoph Hellwig <hch@lst.de>2021-10-12 12:44:50 +0200
committerJens Axboe <axboe@kernel.dk>2021-10-18 06:17:34 -0600
commit8a709512eae7ccd5ba73e8634474caadbc9ebe76 (patch)
treee27b922a97a915f4caacdf473db858a59d0d131c
parent84b8514b46b417e299746b1297d3d0899e8539f3 (diff)
block: merge block_ioctl into blkdev_ioctl
Simplify the ioctl path and match the code structure on the compat side. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20211012104450.659013-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--block/blk.h3
-rw-r--r--block/fops.c19
-rw-r--r--block/ioctl.c18
3 files changed, 16 insertions, 24 deletions
diff --git a/block/blk.h b/block/blk.h
index eadb2a640a69..618482b29671 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -405,8 +405,7 @@ static inline void bio_clear_hipri(struct bio *bio)
bio->bi_opf &= ~REQ_HIPRI;
}
-int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
- unsigned long arg);
+long blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg);
long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg);
extern const struct address_space_operations def_blk_aops;
diff --git a/block/fops.c b/block/fops.c
index 1e970c247e0e..7bb9581a146c 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -461,23 +461,6 @@ static int blkdev_close(struct inode *inode, struct file *filp)
return 0;
}
-static long block_ioctl(struct file *file, unsigned cmd, unsigned long arg)
-{
- struct block_device *bdev = I_BDEV(bdev_file_inode(file));
- fmode_t mode = file->f_mode;
-
- /*
- * O_NDELAY can be altered using fcntl(.., F_SETFL, ..), so we have
- * to updated it before every ioctl.
- */
- if (file->f_flags & O_NDELAY)
- mode |= FMODE_NDELAY;
- else
- mode &= ~FMODE_NDELAY;
-
- return blkdev_ioctl(bdev, mode, cmd, arg);
-}
-
/*
* Write data to the block device. Only intended for the block device itself
* and the raw driver which basically is a fake block device.
@@ -621,7 +604,7 @@ const struct file_operations def_blk_fops = {
.iopoll = blkdev_iopoll,
.mmap = generic_file_mmap,
.fsync = blkdev_fsync,
- .unlocked_ioctl = block_ioctl,
+ .unlocked_ioctl = blkdev_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = compat_blkdev_ioctl,
#endif
diff --git a/block/ioctl.c b/block/ioctl.c
index 0f823444cc55..77b1b2453f39 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -538,12 +538,22 @@ static int blkdev_common_ioctl(struct block_device *bdev, fmode_t mode,
*
* New commands must be compatible and go into blkdev_common_ioctl
*/
-int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
- unsigned long arg)
+long blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
{
- int ret;
- loff_t size;
+ struct block_device *bdev = I_BDEV(file->f_mapping->host);
void __user *argp = (void __user *)arg;
+ fmode_t mode = file->f_mode;
+ loff_t size;
+ int ret;
+
+ /*
+ * O_NDELAY can be altered using fcntl(.., F_SETFL, ..), so we have
+ * to updated it before every ioctl.
+ */
+ if (file->f_flags & O_NDELAY)
+ mode |= FMODE_NDELAY;
+ else
+ mode &= ~FMODE_NDELAY;
switch (cmd) {
/* These need separate implementations for the data structure */