diff options
| author | Mike Christie <mchristi@redhat.com> | 2016-08-04 22:23:34 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-08-04 22:25:33 +0200 |
| commit | abf545484d31b68777a85c5c8f5b4bcde08283eb (patch) | |
| tree | ee91e0a9e679e13cff54ede6b6b489627d72c1b1 /include | |
| parent | loop: make do_req_filebacked more robust (diff) | |
| download | linux-abf545484d31b68777a85c5c8f5b4bcde08283eb.tar.xz linux-abf545484d31b68777a85c5c8f5b4bcde08283eb.zip | |
mm/block: convert rw_page users to bio op use
The rw_page users were not converted to use bio/req ops. As a result
bdev_write_page is not passing down REQ_OP_WRITE and the IOs will
be sent down as reads.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Fixes: 4e1b2d52a80d ("block, fs, drivers: remove REQ_OP compat defs and related code")
Modified by me to:
1) Drop op_flags passing into ->rw_page(), as we don't use it.
2) Make op_is_write() and friends safe to use for !CONFIG_BLOCK
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/blk_types.h | 22 | ||||
| -rw-r--r-- | include/linux/blkdev.h | 2 | ||||
| -rw-r--r-- | include/linux/fs.h | 3 | ||||
| -rw-r--r-- | include/linux/pagemap.h | 2 |
4 files changed, 15 insertions, 14 deletions
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index f254eb264924..14b28ff2caf8 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -18,6 +18,17 @@ struct cgroup_subsys_state; typedef void (bio_end_io_t) (struct bio *); typedef void (bio_destructor_t) (struct bio *); +enum req_op { + REQ_OP_READ, + REQ_OP_WRITE, + REQ_OP_DISCARD, /* request to discard sectors */ + REQ_OP_SECURE_ERASE, /* request to securely erase sectors */ + REQ_OP_WRITE_SAME, /* write same block many times */ + REQ_OP_FLUSH, /* request for cache flush */ +}; + +#define REQ_OP_BITS 3 + #ifdef CONFIG_BLOCK /* * main unit of I/O for the block layer and lower layers (ie drivers and @@ -228,17 +239,6 @@ enum rq_flag_bits { #define REQ_HASHED (1ULL << __REQ_HASHED) #define REQ_MQ_INFLIGHT (1ULL << __REQ_MQ_INFLIGHT) -enum req_op { - REQ_OP_READ, - REQ_OP_WRITE, - REQ_OP_DISCARD, /* request to discard sectors */ - REQ_OP_SECURE_ERASE, /* request to securely erase sectors */ - REQ_OP_WRITE_SAME, /* write same block many times */ - REQ_OP_FLUSH, /* request for cache flush */ -}; - -#define REQ_OP_BITS 3 - typedef unsigned int blk_qc_t; #define BLK_QC_T_NONE -1U #define BLK_QC_T_SHIFT 16 diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index de7935961c27..ccd68c0d01de 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1672,7 +1672,7 @@ struct blk_dax_ctl { struct block_device_operations { int (*open) (struct block_device *, fmode_t); void (*release) (struct gendisk *, fmode_t); - int (*rw_page)(struct block_device *, sector_t, struct page *, int rw); + int (*rw_page)(struct block_device *, sector_t, struct page *, int op); int (*ioctl) (struct block_device *, fmode_t, unsigned, unsigned long); int (*compat_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long); long (*direct_access)(struct block_device *, sector_t, void **, pfn_t *, diff --git a/include/linux/fs.h b/include/linux/fs.h index f3f0b4c8e8ac..498255e6914e 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2480,12 +2480,13 @@ extern void init_special_inode(struct inode *, umode_t, dev_t); extern void make_bad_inode(struct inode *); extern bool is_bad_inode(struct inode *); -#ifdef CONFIG_BLOCK static inline bool op_is_write(unsigned int op) { return op == REQ_OP_READ ? false : true; } +#ifdef CONFIG_BLOCK + /* * return data direction, READ or WRITE */ diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 81363b834900..45786374abbd 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -510,7 +510,7 @@ static inline void wait_on_page_writeback(struct page *page) extern void end_page_writeback(struct page *page); void wait_for_stable_page(struct page *page); -void page_endio(struct page *page, int rw, int err); +void page_endio(struct page *page, int op, int err); /* * Add an arbitrary waiter to a page's wait queue |