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fs/buffer: Combine two submit_bh() and ll_rw_block() arguments 

Both submit_bh() and ll_rw_block() accept a request operation type and
request flags as their first two arguments. Micro-optimize these two
functions by combining these first two arguments into a single argument.
This patch does not change the behavior of any of the modified code.

Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jan Kara <jack@suse.cz>
Acked-by: Song Liu <song@kernel.org> (for the md changes)
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220714180729.1065367-48-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Bart Van Assche 2022-07-14 11:07:13 -07:00 committed by Jens Axboe
parent 3ae7286943
commit 1420c4a549
35 changed files with 88 additions and 90 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/md/md-bitmap.c
View File

@ -302,7 +302,7 @@ static void write_page(struct bitmap *bitmap, struct page *page, int wait)
atomic_inc(&bitmap->pending_writes);
set_buffer_locked(bh);
set_buffer_mapped(bh);
submit_bh(REQ_OP_WRITE, REQ_SYNC, bh);
submit_bh(REQ_OP_WRITE | REQ_SYNC, bh);
bh = bh->b_this_page;
}
@ -394,7 +394,7 @@ static int read_page(struct file *file, unsigned long index,
atomic_inc(&bitmap->pending_writes);
set_buffer_locked(bh);
set_buffer_mapped(bh);
submit_bh(REQ_OP_READ, 0, bh);
submit_bh(REQ_OP_READ, bh);
}
blk_cur++;
bh = bh->b_this_page;

53
fs/buffer.c
View File

@ -52,8 +52,8 @@
#include "internal.h"
static int fsync_buffers_list(spinlock_t *lock, struct list_head *list);
static int submit_bh_wbc(enum req_op op, blk_opf_t op_flags,
struct buffer_head *bh, struct writeback_control *wbc);
static int submit_bh_wbc(blk_opf_t opf, struct buffer_head *bh,
struct writeback_control *wbc);
#define BH_ENTRY(list) list_entry((list), struct buffer_head, b_assoc_buffers)
@ -562,7 +562,7 @@ void write_boundary_block(struct block_device *bdev,
struct buffer_head *bh = __find_get_block(bdev, bblock + 1, blocksize);
if (bh) {
if (buffer_dirty(bh))
ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
ll_rw_block(REQ_OP_WRITE, 1, &bh);
put_bh(bh);
}
}
@ -1174,7 +1174,7 @@ static struct buffer_head *__bread_slow(struct buffer_head *bh)
} else {
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
submit_bh(REQ_OP_READ, 0, bh);
submit_bh(REQ_OP_READ, bh);
wait_on_buffer(bh);
if (buffer_uptodate(bh))
return bh;
@ -1342,7 +1342,7 @@ void __breadahead(struct block_device *bdev, sector_t block, unsigned size)
{
struct buffer_head *bh = __getblk(bdev, block, size);
if (likely(bh)) {
ll_rw_block(REQ_OP_READ, REQ_RAHEAD, 1, &bh);
ll_rw_block(REQ_OP_READ | REQ_RAHEAD, 1, &bh);
brelse(bh);
}
}
@ -1353,7 +1353,7 @@ void __breadahead_gfp(struct block_device *bdev, sector_t block, unsigned size,
{
struct buffer_head *bh = __getblk_gfp(bdev, block, size, gfp);
if (likely(bh)) {
ll_rw_block(REQ_OP_READ, REQ_RAHEAD, 1, &bh);
ll_rw_block(REQ_OP_READ | REQ_RAHEAD, 1, &bh);
brelse(bh);
}
}
@ -1804,7 +1804,7 @@ int __block_write_full_page(struct inode *inode, struct page *page,
do {
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
submit_bh_wbc(REQ_OP_WRITE, write_flags, bh, wbc);
submit_bh_wbc(REQ_OP_WRITE | write_flags, bh, wbc);
nr_underway++;
}
bh = next;
@ -1858,7 +1858,7 @@ recover:
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
clear_buffer_dirty(bh);
submit_bh_wbc(REQ_OP_WRITE, write_flags, bh, wbc);
submit_bh_wbc(REQ_OP_WRITE | write_flags, bh, wbc);
nr_underway++;
}
bh = next;
@ -2033,7 +2033,7 @@ int __block_write_begin_int(struct folio *folio, loff_t pos, unsigned len,
if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
!buffer_unwritten(bh) &&
(block_start < from || block_end > to)) {
ll_rw_block(REQ_OP_READ, 0, 1, &bh);
ll_rw_block(REQ_OP_READ, 1, &bh);
*wait_bh++=bh;
}
}
@ -2334,7 +2334,7 @@ int block_read_full_folio(struct folio *folio, get_block_t *get_block)
if (buffer_uptodate(bh))
end_buffer_async_read(bh, 1);
else
submit_bh(REQ_OP_READ, 0, bh);
submit_bh(REQ_OP_READ, bh);
}
return 0;
}
@ -2665,7 +2665,7 @@ int nobh_write_begin(struct address_space *mapping, loff_t pos, unsigned len,
if (block_start < from || block_end > to) {
lock_buffer(bh);
bh->b_end_io = end_buffer_read_nobh;
submit_bh(REQ_OP_READ, 0, bh);
submit_bh(REQ_OP_READ, bh);
nr_reads++;
}
}
@ -2915,7 +2915,7 @@ int block_truncate_page(struct address_space *mapping,
if (!buffer_uptodate(bh) && !buffer_delay(bh) && !buffer_unwritten(bh)) {
err = -EIO;
ll_rw_block(REQ_OP_READ, 0, 1, &bh);
ll_rw_block(REQ_OP_READ, 1, &bh);
wait_on_buffer(bh);
/* Uhhuh. Read error. Complain and punt. */
if (!buffer_uptodate(bh))
@ -2994,9 +2994,10 @@ static void end_bio_bh_io_sync(struct bio *bio)
bio_put(bio);
}
static int submit_bh_wbc(enum req_op op, blk_opf_t op_flags,
struct buffer_head *bh, struct writeback_control *wbc)
static int submit_bh_wbc(blk_opf_t opf, struct buffer_head *bh,
struct writeback_control *wbc)
{
const enum req_op op = opf & REQ_OP_MASK;
struct bio *bio;
BUG_ON(!buffer_locked(bh));
@ -3012,11 +3013,11 @@ static int submit_bh_wbc(enum req_op op, blk_opf_t op_flags,
clear_buffer_write_io_error(bh);
if (buffer_meta(bh))
op_flags |= REQ_META;
opf |= REQ_META;
if (buffer_prio(bh))
op_flags |= REQ_PRIO;
opf |= REQ_PRIO;
bio = bio_alloc(bh->b_bdev, 1, op | op_flags, GFP_NOIO);
bio = bio_alloc(bh->b_bdev, 1, opf, GFP_NOIO);
fscrypt_set_bio_crypt_ctx_bh(bio, bh, GFP_NOIO);
@ -3040,9 +3041,9 @@ static int submit_bh_wbc(enum req_op op, blk_opf_t op_flags,
return 0;
}
int submit_bh(enum req_op op, blk_opf_t op_flags, struct buffer_head *bh)
int submit_bh(blk_opf_t opf, struct buffer_head *bh)
{
return submit_bh_wbc(op, op_flags, bh, NULL);
return submit_bh_wbc(opf, bh, NULL);
}
EXPORT_SYMBOL(submit_bh);
@ -3072,9 +3073,9 @@ EXPORT_SYMBOL(submit_bh);
* All of the buffers must be for the same device, and must also be a
* multiple of the current approved size for the device.
*/
void ll_rw_block(enum req_op op, blk_opf_t op_flags, int nr,
struct buffer_head *bhs[])
void ll_rw_block(const blk_opf_t opf, int nr, struct buffer_head *bhs[])
{
const enum req_op op = opf & REQ_OP_MASK;
int i;
for (i = 0; i < nr; i++) {
@ -3086,14 +3087,14 @@ void ll_rw_block(enum req_op op, blk_opf_t op_flags, int nr,
if (test_clear_buffer_dirty(bh)) {
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
submit_bh(op, op_flags, bh);
submit_bh(opf, bh);
continue;
}
} else {
if (!buffer_uptodate(bh)) {
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
submit_bh(op, op_flags, bh);
submit_bh(opf, bh);
continue;
}
}
@ -3111,7 +3112,7 @@ void write_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags)
}
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
submit_bh(REQ_OP_WRITE, op_flags, bh);
submit_bh(REQ_OP_WRITE | op_flags, bh);
}
EXPORT_SYMBOL(write_dirty_buffer);
@ -3138,7 +3139,7 @@ int __sync_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags)
get_bh(bh);
bh->b_end_io = end_buffer_write_sync;
ret = submit_bh(REQ_OP_WRITE, op_flags, bh);
ret = submit_bh(REQ_OP_WRITE | op_flags, bh);
wait_on_buffer(bh);
if (!ret && !buffer_uptodate(bh))
ret = -EIO;
@ -3366,7 +3367,7 @@ int bh_submit_read(struct buffer_head *bh)
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
submit_bh(REQ_OP_READ, 0, bh);
submit_bh(REQ_OP_READ, bh);
wait_on_buffer(bh);
if (buffer_uptodate(bh))
return 0;

2
fs/ext4/fast_commit.c
View File

@ -668,7 +668,7 @@ static void ext4_fc_submit_bh(struct super_block *sb, bool is_tail)
set_buffer_dirty(bh);
set_buffer_uptodate(bh);
bh->b_end_io = ext4_end_buffer_io_sync;
submit_bh(REQ_OP_WRITE, write_flags, bh);
submit_bh(REQ_OP_WRITE | write_flags, bh);
EXT4_SB(sb)->s_fc_bh = NULL;
}

2
fs/ext4/mmp.c
View File

@ -52,7 +52,7 @@ static int write_mmp_block(struct super_block *sb, struct buffer_head *bh)
lock_buffer(bh);
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
submit_bh(REQ_OP_WRITE, REQ_SYNC | REQ_META | REQ_PRIO, bh);
submit_bh(REQ_OP_WRITE | REQ_SYNC | REQ_META | REQ_PRIO, bh);
wait_on_buffer(bh);
sb_end_write(sb);
if (unlikely(!buffer_uptodate(bh)))

6
fs/ext4/super.c
View File

@ -171,7 +171,7 @@ static inline void __ext4_read_bh(struct buffer_head *bh, int op_flags,
bh->b_end_io = end_io ? end_io : end_buffer_read_sync;
get_bh(bh);
submit_bh(REQ_OP_READ, op_flags, bh);
submit_bh(REQ_OP_READ | op_flags, bh);
}
void ext4_read_bh_nowait(struct buffer_head *bh, int op_flags,
@ -5939,8 +5939,8 @@ static int ext4_commit_super(struct super_block *sb)
/* Clear potential dirty bit if it was journalled update */
clear_buffer_dirty(sbh);
sbh->b_end_io = end_buffer_write_sync;
submit_bh(REQ_OP_WRITE,
REQ_SYNC | (test_opt(sb, BARRIER) ? REQ_FUA : 0), sbh);
submit_bh(REQ_OP_WRITE | REQ_SYNC |
(test_opt(sb, BARRIER) ? REQ_FUA : 0), sbh);
wait_on_buffer(sbh);
if (buffer_write_io_error(sbh)) {
ext4_msg(sb, KERN_ERR, "I/O error while writing "

5
fs/gfs2/bmap.c
View File

@ -310,9 +310,8 @@ static void gfs2_metapath_ra(struct gfs2_glock *gl, __be64 *start, __be64 *end)
if (trylock_buffer(rabh)) {
if (!buffer_uptodate(rabh)) {
rabh->b_end_io = end_buffer_read_sync;
submit_bh(REQ_OP_READ,
REQ_RAHEAD | REQ_META | REQ_PRIO,
rabh);
submit_bh(REQ_OP_READ | REQ_RAHEAD | REQ_META |
REQ_PRIO, rabh);
continue;
}
unlock_buffer(rabh);

5
fs/gfs2/dir.c
View File

@ -1508,9 +1508,8 @@ static void gfs2_dir_readahead(struct inode *inode, unsigned hsize, u32 index,
continue;
}
bh->b_end_io = end_buffer_read_sync;
submit_bh(REQ_OP_READ,
REQ_RAHEAD | REQ_META | REQ_PRIO,
bh);
submit_bh(REQ_OP_READ | REQ_RAHEAD | REQ_META |
REQ_PRIO, bh);
continue;
}
brelse(bh);

9
fs/gfs2/meta_io.c
View File

@ -75,7 +75,7 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
do {
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
submit_bh(REQ_OP_WRITE, write_flags, bh);
submit_bh(REQ_OP_WRITE | write_flags, bh);
nr_underway++;
}
bh = next;
@ -527,7 +527,7 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen)
if (buffer_uptodate(first_bh))
goto out;
if (!buffer_locked(first_bh))
ll_rw_block(REQ_OP_READ, REQ_META | REQ_PRIO, 1, &first_bh);
ll_rw_block(REQ_OP_READ | REQ_META | REQ_PRIO, 1, &first_bh);
dblock++;
extlen--;
@ -536,9 +536,8 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen)
bh = gfs2_getbuf(gl, dblock, CREATE);
if (!buffer_uptodate(bh) && !buffer_locked(bh))
ll_rw_block(REQ_OP_READ,
REQ_RAHEAD | REQ_META | REQ_PRIO,
1, &bh);
ll_rw_block(REQ_OP_READ | REQ_RAHEAD | REQ_META |
REQ_PRIO, 1, &bh);
brelse(bh);
dblock++;
extlen--;

2
fs/gfs2/quota.c
View File

@ -746,7 +746,7 @@ static int gfs2_write_buf_to_page(struct gfs2_inode *ip, unsigned long index,
if (PageUptodate(page))
set_buffer_uptodate(bh);
if (!buffer_uptodate(bh)) {
ll_rw_block(REQ_OP_READ, REQ_META | REQ_PRIO, 1, &bh);
ll_rw_block(REQ_OP_READ | REQ_META | REQ_PRIO, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh))
goto unlock_out;

2
fs/isofs/compress.c
View File

@ -82,7 +82,7 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start,
return 0;
}
haveblocks = isofs_get_blocks(inode, blocknum, bhs, needblocks);
ll_rw_block(REQ_OP_READ, 0, haveblocks, bhs);
ll_rw_block(REQ_OP_READ, haveblocks, bhs);
curbh = 0;
curpage = 0;

8
fs/jbd2/commit.c
View File

@ -155,10 +155,10 @@ static int journal_submit_commit_record(journal_t *journal,
if (journal->j_flags & JBD2_BARRIER &&
!jbd2_has_feature_async_commit(journal))
ret = submit_bh(REQ_OP_WRITE,
REQ_SYNC | REQ_PREFLUSH | REQ_FUA, bh);
ret = submit_bh(REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH |
REQ_FUA, bh);
else
ret = submit_bh(REQ_OP_WRITE, REQ_SYNC, bh);
ret = submit_bh(REQ_OP_WRITE | REQ_SYNC, bh);
*cbh = bh;
return ret;
@ -763,7 +763,7 @@ start_journal_io:
clear_buffer_dirty(bh);
set_buffer_uptodate(bh);
bh->b_end_io = journal_end_buffer_io_sync;
submit_bh(REQ_OP_WRITE, REQ_SYNC, bh);
submit_bh(REQ_OP_WRITE | REQ_SYNC, bh);
}
cond_resched();

4
fs/jbd2/journal.c
View File

@ -1638,7 +1638,7 @@ static int jbd2_write_superblock(journal_t *journal, int write_flags)
sb->s_checksum = jbd2_superblock_csum(journal, sb);
get_bh(bh);
bh->b_end_io = end_buffer_write_sync;
ret = submit_bh(REQ_OP_WRITE, write_flags, bh);
ret = submit_bh(REQ_OP_WRITE | write_flags, bh);
wait_on_buffer(bh);
if (buffer_write_io_error(bh)) {
clear_buffer_write_io_error(bh);
@ -1900,7 +1900,7 @@ static int journal_get_superblock(journal_t *journal)
J_ASSERT(bh != NULL);
if (!buffer_uptodate(bh)) {
ll_rw_block(REQ_OP_READ, 0, 1, &bh);
ll_rw_block(REQ_OP_READ, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
printk(KERN_ERR

4
fs/jbd2/recovery.c
View File

@ -100,7 +100,7 @@ static int do_readahead(journal_t *journal, unsigned int start)
if (!buffer_uptodate(bh) && !buffer_locked(bh)) {
bufs[nbufs++] = bh;
if (nbufs == MAXBUF) {
ll_rw_block(REQ_OP_READ, 0, nbufs, bufs);
ll_rw_block(REQ_OP_READ, nbufs, bufs);
journal_brelse_array(bufs, nbufs);
nbufs = 0;
}
@ -109,7 +109,7 @@ static int do_readahead(journal_t *journal, unsigned int start)
}
if (nbufs)
ll_rw_block(REQ_OP_READ, 0, nbufs, bufs);
ll_rw_block(REQ_OP_READ, nbufs, bufs);
err = 0;
failed:

2
fs/nilfs2/btnode.c
View File

@ -122,7 +122,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
bh->b_blocknr = pblocknr; /* set block address for read */
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
submit_bh(mode, mode_flags, bh);
submit_bh(mode | mode_flags, bh);
bh->b_blocknr = blocknr; /* set back to the given block address */
*submit_ptr = pblocknr;
err = 0;

2
fs/nilfs2/gcinode.c
View File

@ -92,7 +92,7 @@ int nilfs_gccache_submit_read_data(struct inode *inode, sector_t blkoff,
bh->b_blocknr = pbn;
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
submit_bh(REQ_OP_READ, 0, bh);
submit_bh(REQ_OP_READ, bh);
if (vbn)
bh->b_blocknr = vbn;
out:

2
fs/nilfs2/mdt.c
View File

@ -148,7 +148,7 @@ nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff,
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
submit_bh(mode, mode_flags, bh);
submit_bh(mode | mode_flags, bh);
ret = 0;
trace_nilfs2_mdt_submit_block(inode, inode->i_ino, blkoff, mode);

6
fs/ntfs/aops.c
View File

@ -342,7 +342,7 @@ handle_zblock:
for (i = 0; i < nr; i++) {
tbh = arr[i];
if (likely(!buffer_uptodate(tbh)))
submit_bh(REQ_OP_READ, 0, tbh);
submit_bh(REQ_OP_READ, tbh);
else
ntfs_end_buffer_async_read(tbh, 1);
}
@ -859,7 +859,7 @@ lock_retry_remap:
do {
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
submit_bh(REQ_OP_WRITE, 0, bh);
submit_bh(REQ_OP_WRITE, bh);
need_end_writeback = false;
}
bh = next;
@ -1187,7 +1187,7 @@ lock_retry_remap:
BUG_ON(!buffer_mapped(tbh));
get_bh(tbh);
tbh->b_end_io = end_buffer_write_sync;
submit_bh(REQ_OP_WRITE, 0, tbh);
submit_bh(REQ_OP_WRITE, tbh);
}
/* Synchronize the mft mirror now if not @sync. */
if (is_mft && !sync)

2
fs/ntfs/compress.c
View File

@ -658,7 +658,7 @@ lock_retry_remap:
}
get_bh(tbh);
tbh->b_end_io = end_buffer_read_sync;
submit_bh(REQ_OP_READ, 0, tbh);
submit_bh(REQ_OP_READ, tbh);
}
/* Wait for io completion on all buffer heads. */

2
fs/ntfs/file.c
View File

@ -537,7 +537,7 @@ static inline int ntfs_submit_bh_for_read(struct buffer_head *bh)
lock_buffer(bh);
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
return submit_bh(REQ_OP_READ, 0, bh);
return submit_bh(REQ_OP_READ, bh);
}
/**

2
fs/ntfs/logfile.c
View File

@ -807,7 +807,7 @@ map_vcn:
* completed ignore errors afterwards as we can assume
* that if one buffer worked all of them will work.
*/
submit_bh(REQ_OP_WRITE, 0, bh);
submit_bh(REQ_OP_WRITE, bh);
if (should_wait) {
should_wait = false;
wait_on_buffer(bh);

4
fs/ntfs/mft.c
View File

@ -583,7 +583,7 @@ int ntfs_sync_mft_mirror(ntfs_volume *vol, const unsigned long mft_no,
clear_buffer_dirty(tbh);
get_bh(tbh);
tbh->b_end_io = end_buffer_write_sync;
submit_bh(REQ_OP_WRITE, 0, tbh);
submit_bh(REQ_OP_WRITE, tbh);
}
/* Wait on i/o completion of buffers. */
for (i_bhs = 0; i_bhs < nr_bhs; i_bhs++) {
@ -780,7 +780,7 @@ int write_mft_record_nolock(ntfs_inode *ni, MFT_RECORD *m, int sync)
clear_buffer_dirty(tbh);
get_bh(tbh);
tbh->b_end_io = end_buffer_write_sync;
submit_bh(REQ_OP_WRITE, 0, tbh);
submit_bh(REQ_OP_WRITE, tbh);
}
/* Synchronize the mft mirror now if not @sync. */
if (!sync && ni->mft_no < vol->mftmirr_size)

2
fs/ntfs3/file.c
View File

@ -242,7 +242,7 @@ static int ntfs_zero_range(struct inode *inode, u64 vbo, u64 vbo_to)
lock_buffer(bh);
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
submit_bh(REQ_OP_READ, 0, bh);
submit_bh(REQ_OP_READ, bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {

2
fs/ntfs3/inode.c
View File

@ -629,7 +629,7 @@ static noinline int ntfs_get_block_vbo(struct inode *inode, u64 vbo,
bh->b_size = block_size;
off = vbo & (PAGE_SIZE - 1);
set_bh_page(bh, page, off);
ll_rw_block(REQ_OP_READ, 0, 1, &bh);
ll_rw_block(REQ_OP_READ, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
err = -EIO;

2
fs/ocfs2/aops.c
View File

@ -638,7 +638,7 @@ int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno,
!buffer_new(bh) &&
ocfs2_should_read_blk(inode, page, block_start) &&
(block_start < from || block_end > to)) {
ll_rw_block(REQ_OP_READ, 0, 1, &bh);
ll_rw_block(REQ_OP_READ, 1, &bh);
*wait_bh++=bh;
}

8
fs/ocfs2/buffer_head_io.c
View File

@ -64,7 +64,7 @@ int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh,
get_bh(bh); /* for end_buffer_write_sync() */
bh->b_end_io = end_buffer_write_sync;
submit_bh(REQ_OP_WRITE, 0, bh);
submit_bh(REQ_OP_WRITE, bh);
wait_on_buffer(bh);
@ -147,7 +147,7 @@ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block,
get_bh(bh); /* for end_buffer_read_sync() */
bh->b_end_io = end_buffer_read_sync;
submit_bh(REQ_OP_READ, 0, bh);
submit_bh(REQ_OP_READ, bh);
}
read_failure:
@ -328,7 +328,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
if (validate)
set_buffer_needs_validate(bh);
bh->b_end_io = end_buffer_read_sync;
submit_bh(REQ_OP_READ, 0, bh);
submit_bh(REQ_OP_READ, bh);
continue;
}
}
@ -449,7 +449,7 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
get_bh(bh); /* for end_buffer_write_sync() */
bh->b_end_io = end_buffer_write_sync;
ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &di->i_check);
submit_bh(REQ_OP_WRITE, 0, bh);
submit_bh(REQ_OP_WRITE, bh);
wait_on_buffer(bh);

2
fs/ocfs2/super.c
View File

@ -1785,7 +1785,7 @@ static int ocfs2_get_sector(struct super_block *sb,
if (!buffer_dirty(*bh))
clear_buffer_uptodate(*bh);
unlock_buffer(*bh);
ll_rw_block(REQ_OP_READ, 0, 1, bh);
ll_rw_block(REQ_OP_READ, 1, bh);
wait_on_buffer(*bh);
if (!buffer_uptodate(*bh)) {
mlog_errno(-EIO);

4
fs/reiserfs/inode.c
View File

@ -2664,7 +2664,7 @@ static int reiserfs_write_full_page(struct page *page,
do {
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
submit_bh(REQ_OP_WRITE, 0, bh);
submit_bh(REQ_OP_WRITE, bh);
nr++;
}
put_bh(bh);
@ -2724,7 +2724,7 @@ fail:
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
clear_buffer_dirty(bh);
submit_bh(REQ_OP_WRITE, 0, bh);
submit_bh(REQ_OP_WRITE, bh);
nr++;
}
put_bh(bh);

12
fs/reiserfs/journal.c
View File

@ -650,7 +650,7 @@ static void submit_logged_buffer(struct buffer_head *bh)
BUG();
if (!buffer_uptodate(bh))
BUG();
submit_bh(REQ_OP_WRITE, 0, bh);
submit_bh(REQ_OP_WRITE, bh);
}
static void submit_ordered_buffer(struct buffer_head *bh)
@ -660,7 +660,7 @@ static void submit_ordered_buffer(struct buffer_head *bh)
clear_buffer_dirty(bh);
if (!buffer_uptodate(bh))
BUG();
submit_bh(REQ_OP_WRITE, 0, bh);
submit_bh(REQ_OP_WRITE, bh);
}
#define CHUNK_SIZE 32
@ -868,7 +868,7 @@ loop_next:
*/
if (buffer_dirty(bh) && unlikely(bh->b_page->mapping == NULL)) {
spin_unlock(lock);
ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
ll_rw_block(REQ_OP_WRITE, 1, &bh);
spin_lock(lock);
}
put_bh(bh);
@ -1054,7 +1054,7 @@ static int flush_commit_list(struct super_block *s,
if (tbh) {
if (buffer_dirty(tbh)) {
depth = reiserfs_write_unlock_nested(s);
ll_rw_block(REQ_OP_WRITE, 0, 1, &tbh);
ll_rw_block(REQ_OP_WRITE, 1, &tbh);
reiserfs_write_lock_nested(s, depth);
}
put_bh(tbh) ;
@ -2240,7 +2240,7 @@ abort_replay:
}
}
/* read in the log blocks, memcpy to the corresponding real block */
ll_rw_block(REQ_OP_READ, 0, get_desc_trans_len(desc), log_blocks);
ll_rw_block(REQ_OP_READ, get_desc_trans_len(desc), log_blocks);
for (i = 0; i < get_desc_trans_len(desc); i++) {
wait_on_buffer(log_blocks[i]);
@ -2342,7 +2342,7 @@ static struct buffer_head *reiserfs_breada(struct block_device *dev,
} else
bhlist[j++] = bh;
}
ll_rw_block(REQ_OP_READ, 0, j, bhlist);
ll_rw_block(REQ_OP_READ, j, bhlist);
for (i = 1; i < j; i++)
brelse(bhlist[i]);
bh = bhlist[0];

4
fs/reiserfs/stree.c
View File

@ -579,7 +579,7 @@ static int search_by_key_reada(struct super_block *s,
if (!buffer_uptodate(bh[j])) {
if (depth == -1)
depth = reiserfs_write_unlock_nested(s);
ll_rw_block(REQ_OP_READ, REQ_RAHEAD, 1, bh + j);
ll_rw_block(REQ_OP_READ | REQ_RAHEAD, 1, bh + j);
}
brelse(bh[j]);
}
@ -685,7 +685,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *key,
if (!buffer_uptodate(bh) && depth == -1)
depth = reiserfs_write_unlock_nested(sb);
ll_rw_block(REQ_OP_READ, 0, 1, &bh);
ll_rw_block(REQ_OP_READ, 1, &bh);
wait_on_buffer(bh);
if (depth != -1)

2
fs/reiserfs/super.c
View File

@ -1702,7 +1702,7 @@ static int read_super_block(struct super_block *s, int offset)
/* after journal replay, reread all bitmap and super blocks */
static int reread_meta_blocks(struct super_block *s)
{
ll_rw_block(REQ_OP_READ, 0, 1, &SB_BUFFER_WITH_SB(s));
ll_rw_block(REQ_OP_READ, 1, &SB_BUFFER_WITH_SB(s));
wait_on_buffer(SB_BUFFER_WITH_SB(s));
if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) {
reiserfs_warning(s, "reiserfs-2504", "error reading the super");

2
fs/udf/dir.c
View File

@ -130,7 +130,7 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
brelse(tmp);
}
if (num) {
ll_rw_block(REQ_OP_READ, REQ_RAHEAD, num, bha);
ll_rw_block(REQ_OP_READ | REQ_RAHEAD, num, bha);
for (i = 0; i < num; i++)
brelse(bha[i]);
}

2
fs/udf/directory.c
View File

@ -89,7 +89,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
brelse(tmp);
}
if (num) {
ll_rw_block(REQ_OP_READ, REQ_RAHEAD, num, bha);
ll_rw_block(REQ_OP_READ | REQ_RAHEAD, num, bha);
for (i = 0; i < num; i++)
brelse(bha[i]);
}

2
fs/udf/inode.c
View File

@ -1214,7 +1214,7 @@ struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block,
if (buffer_uptodate(bh))
return bh;
ll_rw_block(REQ_OP_READ, 0, 1, &bh);
ll_rw_block(REQ_OP_READ, 1, &bh);
wait_on_buffer(bh);
if (buffer_uptodate(bh))

2
fs/ufs/balloc.c
View File

@ -296,7 +296,7 @@ static void ufs_change_blocknr(struct inode *inode, sector_t beg,
if (!buffer_mapped(bh))
map_bh(bh, inode->i_sb, oldb + pos);
if (!buffer_uptodate(bh)) {
ll_rw_block(REQ_OP_READ, 0, 1, &bh);
ll_rw_block(REQ_OP_READ, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
ufs_error(inode->i_sb, __func__,

4
include/linux/buffer_head.h
View File

@ -202,11 +202,11 @@ struct buffer_head *alloc_buffer_head(gfp_t gfp_flags);
void free_buffer_head(struct buffer_head * bh);
void unlock_buffer(struct buffer_head *bh);
void __lock_buffer(struct buffer_head *bh);
void ll_rw_block(enum req_op, blk_opf_t, int, struct buffer_head * bh[]);
void ll_rw_block(blk_opf_t, int, struct buffer_head * bh[]);
int sync_dirty_buffer(struct buffer_head *bh);
int __sync_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags);
void write_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags);
int submit_bh(enum req_op, blk_opf_t, struct buffer_head *);
int submit_bh(blk_opf_t, struct buffer_head *);
void write_boundary_block(struct block_device *bdev,
sector_t bblock, unsigned blocksize);
int bh_uptodate_or_lock(struct buffer_head *bh);