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Message-Id: <1446674909-5371-24-git-send-email-mchristi@redhat.com>
Date: Wed, 4 Nov 2015 16:08:20 -0600
From: mchristi@...hat.com
To: linux-fsdevel@...r.kernel.org, dm-devel@...hat.com,
linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-scsi@...r.kernel.org, drbd-dev@...ts.linbit.com
Cc: Mike Christie <mchristi@...hat.com>
Subject: [PATCH 23/32] block/fs: pass in op and flags to ll_rw_block
From: Mike Christie <mchristi@...hat.com>
This has ll_rw_block users pass in the request op and flags seperately
instead of as a bitmap.
Signed-off-by: Mike Christie <mchristi@...hat.com>
---
fs/buffer.c | 19 ++++++++++---------
fs/ext4/inode.c | 6 +++---
fs/ext4/namei.c | 3 ++-
fs/ext4/super.c | 2 +-
fs/gfs2/bmap.c | 2 +-
fs/gfs2/meta_io.c | 4 ++--
fs/gfs2/quota.c | 2 +-
fs/isofs/compress.c | 2 +-
fs/jbd2/journal.c | 2 +-
fs/jbd2/recovery.c | 4 ++--
fs/ocfs2/aops.c | 2 +-
fs/ocfs2/super.c | 2 +-
fs/reiserfs/journal.c | 8 ++++----
fs/reiserfs/stree.c | 4 ++--
fs/reiserfs/super.c | 2 +-
fs/squashfs/block.c | 4 ++--
fs/udf/dir.c | 2 +-
fs/udf/directory.c | 2 +-
fs/udf/inode.c | 2 +-
fs/ufs/balloc.c | 2 +-
include/linux/buffer_head.h | 2 +-
21 files changed, 40 insertions(+), 38 deletions(-)
diff --git a/fs/buffer.c b/fs/buffer.c
index cd07d86..ba84126 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -595,7 +595,7 @@ 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(WRITE, 1, &bh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
put_bh(bh);
}
}
@@ -1406,7 +1406,7 @@ 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(READA, 1, &bh);
+ ll_rw_block(REQ_OP_READ, REQ_RAHEAD, 1, &bh);
brelse(bh);
}
}
@@ -1966,7 +1966,7 @@ int __block_write_begin(struct page *page, loff_t pos, unsigned len,
if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
!buffer_unwritten(bh) &&
(block_start < from || block_end > to)) {
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
*wait_bh++=bh;
}
}
@@ -2883,7 +2883,7 @@ int block_truncate_page(struct address_space *mapping,
if (!buffer_uptodate(bh) && !buffer_delay(bh) && !buffer_unwritten(bh)) {
err = -EIO;
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
/* Uhhuh. Read error. Complain and punt. */
if (!buffer_uptodate(bh))
@@ -3081,7 +3081,8 @@ EXPORT_SYMBOL(submit_bh);
/**
* ll_rw_block: low-level access to block devices (DEPRECATED)
- * @rw: whether to %READ or %WRITE or maybe %READA (readahead)
+ * @op: REQ_OP_READ or REQ_OP_WRITE
+ * op_flags: rq_flag_bits
* @nr: number of &struct buffer_heads in the array
* @bhs: array of pointers to &struct buffer_head
*
@@ -3104,7 +3105,7 @@ 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(int rw, int nr, struct buffer_head *bhs[])
+void ll_rw_block(int op, int op_flags, int nr, struct buffer_head *bhs[])
{
int i;
@@ -3113,18 +3114,18 @@ void ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
if (!trylock_buffer(bh))
continue;
- if (rw == WRITE) {
+ if (op == REQ_OP_WRITE) {
if (test_clear_buffer_dirty(bh)) {
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
- submit_bh(REQ_OP_WRITE, 0, bh);
+ submit_bh(REQ_OP_WRITE, op_flags, bh);
continue;
}
} else {
if (!buffer_uptodate(bh)) {
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
- submit_bh(rw, 0, bh);
+ submit_bh(REQ_OP_READ, op_flags, bh);
continue;
}
}
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index f34ef29..dd2e197 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -791,7 +791,7 @@ struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,
return bh;
if (!bh || buffer_uptodate(bh))
return bh;
- ll_rw_block(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))
return bh;
@@ -948,7 +948,7 @@ static int ext4_block_write_begin(struct page *page, loff_t pos, unsigned len,
if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
!buffer_unwritten(bh) &&
(block_start < from || block_end > to)) {
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
*wait_bh++ = bh;
decrypt = ext4_encrypted_inode(inode) &&
S_ISREG(inode->i_mode);
@@ -3383,7 +3383,7 @@ static int __ext4_block_zero_page_range(handle_t *handle,
if (!buffer_uptodate(bh)) {
err = -EIO;
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
/* Uhhuh. Read error. Complain and punt. */
if (!buffer_uptodate(bh))
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 9f61e76..0336536 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1438,7 +1438,8 @@ restart:
}
bh_use[ra_max] = bh;
if (bh)
- ll_rw_block(READ | REQ_META | REQ_PRIO,
+ ll_rw_block(REQ_OP_READ,
+ REQ_META | REQ_PRIO,
1, &bh);
}
}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index d9e4329..037dd9e 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4512,7 +4512,7 @@ static journal_t *ext4_get_dev_journal(struct super_block *sb,
goto out_bdev;
}
journal->j_private = sb;
- ll_rw_block(READ | REQ_META | REQ_PRIO, 1, &journal->j_sb_buffer);
+ ll_rw_block(REQ_OP_READ, REQ_META | REQ_PRIO, 1, &journal->j_sb_buffer);
wait_on_buffer(journal->j_sb_buffer);
if (!buffer_uptodate(journal->j_sb_buffer)) {
ext4_msg(sb, KERN_ERR, "I/O error on journal device");
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 967154c..1a22952 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -974,7 +974,7 @@ static int gfs2_block_truncate_page(struct address_space *mapping, loff_t from)
if (!buffer_uptodate(bh)) {
err = -EIO;
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
/* Uhhuh. Read error. Complain and punt. */
if (!buffer_uptodate(bh))
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index ff483bc..264c95c 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -379,7 +379,7 @@ 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(READ_SYNC | REQ_META, 1, &first_bh);
+ ll_rw_block(REQ_OP_READ, READ_SYNC | REQ_META, 1, &first_bh);
dblock++;
extlen--;
@@ -388,7 +388,7 @@ 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(READA | REQ_META, 1, &bh);
+ ll_rw_block(REQ_OP_READ, REQ_RAHEAD | REQ_META, 1, &bh);
brelse(bh);
dblock++;
extlen--;
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 3a31226..841f15a 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -697,7 +697,7 @@ 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(READ | REQ_META, 1, &bh);
+ ll_rw_block(REQ_OP_READ, REQ_META, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh))
goto unlock_out;
diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c
index f311bf0..f9b5fc8 100644
--- a/fs/isofs/compress.c
+++ b/fs/isofs/compress.c
@@ -81,7 +81,7 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start,
blocknum = block_start >> bufshift;
memset(bhs, 0, (needblocks + 1) * sizeof(struct buffer_head *));
haveblocks = isofs_get_blocks(inode, blocknum, bhs, needblocks);
- ll_rw_block(READ, haveblocks, bhs);
+ ll_rw_block(REQ_OP_READ, 0, haveblocks, bhs);
curbh = 0;
curpage = 0;
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index e3855b0..4ba109f 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1474,7 +1474,7 @@ static int journal_get_superblock(journal_t *journal)
J_ASSERT(bh != NULL);
if (!buffer_uptodate(bh)) {
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
printk(KERN_ERR
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index a9079d0..3147a89 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -104,7 +104,7 @@ 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(READ, nbufs, bufs);
+ ll_rw_block(REQ_OP_READ, 0, nbufs, bufs);
journal_brelse_array(bufs, nbufs);
nbufs = 0;
}
@@ -113,7 +113,7 @@ static int do_readahead(journal_t *journal, unsigned int start)
}
if (nbufs)
- ll_rw_block(READ, nbufs, bufs);
+ ll_rw_block(REQ_OP_READ, 0, nbufs, bufs);
err = 0;
failed:
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 64b11d9..247ad9d 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1141,7 +1141,7 @@ 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(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
*wait_bh++=bh;
}
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 2de4c8a..e860b60 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1837,7 +1837,7 @@ static int ocfs2_get_sector(struct super_block *sb,
if (!buffer_dirty(*bh))
clear_buffer_uptodate(*bh);
unlock_buffer(*bh);
- ll_rw_block(READ, 1, bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, bh);
wait_on_buffer(*bh);
if (!buffer_uptodate(*bh)) {
mlog_errno(-EIO);
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index df69581..feff389 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -872,7 +872,7 @@ loop_next:
*/
if (buffer_dirty(bh) && unlikely(bh->b_page->mapping == NULL)) {
spin_unlock(lock);
- ll_rw_block(WRITE, 1, &bh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
spin_lock(lock);
}
put_bh(bh);
@@ -1059,7 +1059,7 @@ static int flush_commit_list(struct super_block *s,
if (tbh) {
if (buffer_dirty(tbh)) {
depth = reiserfs_write_unlock_nested(s);
- ll_rw_block(WRITE, 1, &tbh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &tbh);
reiserfs_write_lock_nested(s, depth);
}
put_bh(tbh) ;
@@ -2248,7 +2248,7 @@ abort_replay:
}
}
/* read in the log blocks, memcpy to the corresponding real block */
- ll_rw_block(READ, get_desc_trans_len(desc), log_blocks);
+ ll_rw_block(REQ_OP_READ, 0, get_desc_trans_len(desc), log_blocks);
for (i = 0; i < get_desc_trans_len(desc); i++) {
wait_on_buffer(log_blocks[i]);
@@ -2350,7 +2350,7 @@ static struct buffer_head *reiserfs_breada(struct block_device *dev,
} else
bhlist[j++] = bh;
}
- ll_rw_block(READ, j, bhlist);
+ ll_rw_block(REQ_OP_READ, 0, j, bhlist);
for (i = 1; i < j; i++)
brelse(bhlist[i]);
bh = bhlist[0];
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index 24cbe01..e887401 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -551,7 +551,7 @@ 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(READA, 1, bh + j);
+ ll_rw_block(REQ_OP_READ, REQ_RAHEAD, 1, bh + j);
}
brelse(bh[j]);
}
@@ -660,7 +660,7 @@ 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(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
if (depth != -1)
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 4a62fe8..68f5f5c 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1659,7 +1659,7 @@ 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(READ, 1, &SB_BUFFER_WITH_SB(s));
+ ll_rw_block(REQ_OP_READ, 0, 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");
diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index 0cea9b9..59375be 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -124,7 +124,7 @@ int squashfs_read_data(struct super_block *sb, u64 index, int length,
goto block_release;
bytes += msblk->devblksize;
}
- ll_rw_block(READ, b, bh);
+ ll_rw_block(REQ_OP_READ, 0, b, bh);
} else {
/*
* Metadata block.
@@ -156,7 +156,7 @@ int squashfs_read_data(struct super_block *sb, u64 index, int length,
goto block_release;
bytes += msblk->devblksize;
}
- ll_rw_block(READ, b - 1, bh + 1);
+ ll_rw_block(REQ_OP_READ, 0, b - 1, bh + 1);
}
for (i = 0; i < b; i++) {
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index 541d9c6..1792fa0 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -113,7 +113,7 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
brelse(tmp);
}
if (num) {
- ll_rw_block(READA, num, bha);
+ ll_rw_block(REQ_OP_READ, REQ_RAHEAD, num, bha);
for (i = 0; i < num; i++)
brelse(bha[i]);
}
diff --git a/fs/udf/directory.c b/fs/udf/directory.c
index c763fda..988d535 100644
--- a/fs/udf/directory.c
+++ b/fs/udf/directory.c
@@ -87,7 +87,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
brelse(tmp);
}
if (num) {
- ll_rw_block(READA, num, bha);
+ ll_rw_block(REQ_OP_READ, REQ_RAHEAD, num, bha);
for (i = 0; i < num; i++)
brelse(bha[i]);
}
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 8d0b3ad..240c0cc 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1191,7 +1191,7 @@ struct buffer_head *udf_bread(struct inode *inode, int block,
if (buffer_uptodate(bh))
return bh;
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
if (buffer_uptodate(bh))
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index dc5fae6..26a3bb1 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -292,7 +292,7 @@ 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(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
ufs_error(inode->i_sb, __func__,
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 6edc8dd..8505ee7 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -187,7 +187,7 @@ 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(int, int, struct buffer_head * bh[]);
+void ll_rw_block(int, int, int, struct buffer_head * bh[]);
int sync_dirty_buffer(struct buffer_head *bh);
int __sync_dirty_buffer(struct buffer_head *bh, int op, int op_flags);
void write_dirty_buffer(struct buffer_head *bh, int op_flags);
--
1.8.3.1
--
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