On Wed 18-11-20 09:47:46, Christoph Hellwig wrote: > Adding the minor to the major creates tons of pointless conflicts. Just > use the dev_t itself, which is 32-bits and thus is guaranteed to fit > into ino_t. > > Signed-off-by: Christoph Hellwig <h...@lst.de>
Fair enough. You can add: Reviewed-by: Jan Kara <j...@suse.cz> Honza > --- > fs/block_dev.c | 26 ++------------------------ > 1 file changed, 2 insertions(+), 24 deletions(-) > > diff --git a/fs/block_dev.c b/fs/block_dev.c > index d8664f5c1ff669..29db12c3bb501c 100644 > --- a/fs/block_dev.c > +++ b/fs/block_dev.c > @@ -870,35 +870,12 @@ void __init bdev_cache_init(void) > blockdev_superblock = bd_mnt->mnt_sb; /* For writeback */ > } > > -/* > - * Most likely _very_ bad one - but then it's hardly critical for small > - * /dev and can be fixed when somebody will need really large one. > - * Keep in mind that it will be fed through icache hash function too. > - */ > -static inline unsigned long hash(dev_t dev) > -{ > - return MAJOR(dev)+MINOR(dev); > -} > - > -static int bdev_test(struct inode *inode, void *data) > -{ > - return BDEV_I(inode)->bdev.bd_dev == *(dev_t *)data; > -} > - > -static int bdev_set(struct inode *inode, void *data) > -{ > - BDEV_I(inode)->bdev.bd_dev = *(dev_t *)data; > - return 0; > -} > - > static struct block_device *bdget(dev_t dev) > { > struct block_device *bdev; > struct inode *inode; > > - inode = iget5_locked(blockdev_superblock, hash(dev), > - bdev_test, bdev_set, &dev); > - > + inode = iget_locked(blockdev_superblock, dev); > if (!inode) > return NULL; > > @@ -910,6 +887,7 @@ static struct block_device *bdget(dev_t dev) > bdev->bd_super = NULL; > bdev->bd_inode = inode; > bdev->bd_part_count = 0; > + bdev->bd_dev = dev; > inode->i_mode = S_IFBLK; > inode->i_rdev = dev; > inode->i_bdev = bdev; > -- > 2.29.2 > -- Jan Kara <j...@suse.com> SUSE Labs, CR -- dm-devel mailing list dm-devel@redhat.com https://www.redhat.com/mailman/listinfo/dm-devel