diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/blkdev.h | 8 | ||||
| -rw-r--r-- | include/linux/fs.h | 1 |
2 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index d37751789bf5..1c0cf6af392c 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -268,10 +268,16 @@ static inline dev_t disk_devt(struct gendisk *disk) return MKDEV(disk->major, disk->first_minor); } +/* + * We should strive for 1 << (PAGE_SHIFT + MAX_PAGECACHE_ORDER) + * however we constrain this to what we can validate and test. + */ +#define BLK_MAX_BLOCK_SIZE SZ_64K + /* blk_validate_limits() validates bsize, so drivers don't usually need to */ static inline int blk_validate_block_size(unsigned long bsize) { - if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize)) + if (bsize < 512 || bsize > BLK_MAX_BLOCK_SIZE || !is_power_of_2(bsize)) return -EINVAL; return 0; diff --git a/include/linux/fs.h b/include/linux/fs.h index 5b9f114180b9..1a0e23a5d02d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2606,6 +2606,7 @@ struct file_system_type { #define FS_DISALLOW_NOTIFY_PERM 16 /* Disable fanotify permission events */ #define FS_ALLOW_IDMAP 32 /* FS has been updated to handle vfs idmappings. */ #define FS_MGTIME 64 /* FS uses multigrain timestamps */ +#define FS_LBS 128 /* FS supports LBS */ #define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() during rename() internally. */ int (*init_fs_context)(struct fs_context *); const struct fs_parameter_spec *parameters; |