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writeback: remove writeback_inodes_wbc 

This was just an odd wrapper around writeback_inodes_wb.  Removing this
also allows to get rid of the bdi member of struct writeback_control
which was rather out of place there.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Christoph Hellwig 2010-06-10 12:07:27 +02:00 committed by Jens Axboe
parent 06d738fa91
commit 9c3a8ee8a1
6 changed files with 6 additions and 20 deletions
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1
fs/afs/write.c
View File

@ -680,7 +680,6 @@ int afs_writeback_all(struct afs_vnode *vnode)
{
struct address_space *mapping = vnode->vfs_inode.i_mapping;
struct writeback_control wbc = {
.bdi = mapping->backing_dev_info,
.sync_mode = WB_SYNC_ALL,
.nr_to_write = LONG_MAX,
.range_cyclic = 1,

2
fs/btrfs/extent_io.c
View File

@ -2594,7 +2594,6 @@ int extent_write_full_page(struct extent_io_tree *tree, struct page *page,
.sync_io = wbc->sync_mode == WB_SYNC_ALL,
};
struct writeback_control wbc_writepages = {
.bdi = wbc->bdi,
.sync_mode = wbc->sync_mode,
.older_than_this = NULL,
.nr_to_write = 64,
@ -2628,7 +2627,6 @@ int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
.sync_io = mode == WB_SYNC_ALL,
};
struct writeback_control wbc_writepages = {
.bdi = inode->i_mapping->backing_dev_info,
.sync_mode = mode,
.older_than_this = NULL,
.nr_to_write = nr_pages * 2,

12
fs/fs-writeback.c
View File

@ -614,8 +614,8 @@ static int writeback_sb_inodes(struct super_block *sb,
return 1;
}
static void writeback_inodes_wb(struct bdi_writeback *wb,
struct writeback_control *wbc)
void writeback_inodes_wb(struct bdi_writeback *wb,
struct writeback_control *wbc)
{
int ret = 0;
@ -660,13 +660,6 @@ static void writeback_inodes_wb(struct bdi_writeback *wb,
/* Leave any unwritten inodes on b_io */
}
void writeback_inodes_wbc(struct writeback_control *wbc)
{
struct backing_dev_info *bdi = wbc->bdi;
writeback_inodes_wb(&bdi->wb, wbc);
}
/*
* The maximum number of pages to writeout in a single bdi flush/kupdate
* operation. We do this so we don't hold I_SYNC against an inode for
@ -705,7 +698,6 @@ static long wb_writeback(struct bdi_writeback *wb,
struct wb_writeback_args *args)
{
struct writeback_control wbc = {
.bdi = wb->bdi,
.sb = args->sb,
.sync_mode = args->sync_mode,
.older_than_this = NULL,

5
include/linux/writeback.h
View File

@ -27,8 +27,6 @@ enum writeback_sync_modes {
* in a manner such that unspecified fields are set to zero.
*/
struct writeback_control {
struct backing_dev_info *bdi; /* If !NULL, only write back this
queue */
struct super_block *sb; /* if !NULL, only write inodes from
this super_block */
enum writeback_sync_modes sync_mode;
@ -66,7 +64,8 @@ int inode_wait(void *);
void writeback_inodes_sb(struct super_block *);
int writeback_inodes_sb_if_idle(struct super_block *);
void sync_inodes_sb(struct super_block *);
void writeback_inodes_wbc(struct writeback_control *wbc);
void writeback_inodes_wb(struct bdi_writeback *wb,
struct writeback_control *wbc);
long wb_do_writeback(struct bdi_writeback *wb, int force_wait);
void wakeup_flusher_threads(long nr_pages);

3
mm/backing-dev.c
View File

@ -340,14 +340,13 @@ int bdi_has_dirty_io(struct backing_dev_info *bdi)
static void bdi_flush_io(struct backing_dev_info *bdi)
{
struct writeback_control wbc = {
.bdi = bdi,
.sync_mode = WB_SYNC_NONE,
.older_than_this = NULL,
.range_cyclic = 1,
.nr_to_write = 1024,
};
writeback_inodes_wbc(&wbc);
writeback_inodes_wb(&bdi->wb, &wbc);
}
/*

3
mm/page-writeback.c
View File

@ -495,7 +495,6 @@ static void balance_dirty_pages(struct address_space *mapping,
for (;;) {
struct writeback_control wbc = {
.bdi = bdi,
.sync_mode = WB_SYNC_NONE,
.older_than_this = NULL,
.nr_to_write = write_chunk,
@ -537,7 +536,7 @@ static void balance_dirty_pages(struct address_space *mapping,
* up.
*/
if (bdi_nr_reclaimable > bdi_thresh) {
writeback_inodes_wbc(&wbc);
writeback_inodes_wb(&bdi->wb, &wbc);
pages_written += write_chunk - wbc.nr_to_write;
get_dirty_limits(&background_thresh, &dirty_thresh,
&bdi_thresh, bdi);