The patch titled
readahead: compacting file_ra_state
has been removed from the -mm tree. Its filename was
readahead-compacting-file_ra_state.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: readahead: compacting file_ra_state
From: Fengguang Wu <wfg@xxxxxxxxxxxxxxxx>
Use 'unsigned int' instead of 'unsigned long' for readahead sizes.
This helps reduce memory consumption on 64bit CPU when a lot of files are
opened.
CC: Andi Kleen <andi@xxxxxxxxxxxxxx>
Signed-off-by: Fengguang Wu <wfg@xxxxxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/fs.h | 8 ++++----
mm/readahead.c | 2 +-
2 files changed, 5 insertions(+), 5 deletions(-)
diff -puN include/linux/fs.h~readahead-compacting-file_ra_state include/linux/fs.h
--- a/include/linux/fs.h~readahead-compacting-file_ra_state
+++ a/include/linux/fs.h
@@ -697,12 +697,12 @@ struct fown_struct {
* Track a single file's readahead state
*/
struct file_ra_state {
- pgoff_t start; /* where readahead started */
- unsigned long size; /* # of readahead pages */
- unsigned long async_size; /* do asynchronous readahead when
+ pgoff_t start; /* where readahead started */
+ unsigned int size; /* # of readahead pages */
+ unsigned int async_size; /* do asynchronous readahead when
there are only # of pages ahead */
- unsigned long ra_pages; /* Maximum readahead window */
+ unsigned int ra_pages; /* Maximum readahead window */
unsigned long mmap_hit; /* Cache hit stat for mmap accesses */
unsigned long mmap_miss; /* Cache miss stat for mmap accesses */
unsigned long prev_index; /* Cache last read() position */
diff -puN mm/readahead.c~readahead-compacting-file_ra_state mm/readahead.c
--- a/mm/readahead.c~readahead-compacting-file_ra_state
+++ a/mm/readahead.c
@@ -351,7 +351,7 @@ ondemand_readahead(struct address_space
bool hit_readahead_marker, pgoff_t offset,
unsigned long req_size)
{
- unsigned long max; /* max readahead pages */
+ int max; /* max readahead pages */
int sequential;
max = ra->ra_pages;
_
Patches currently in -mm which might be from wfg@xxxxxxxxxxxxxxxx are
origin.patch
maps-pssproportional-set-size-accounting-in-smaps.patch
convert-ill-defined-log2-to-ilog2.patch
avoid-negative-and-full-width-shifts-in-radix-treec.patch
writeback-fix-time-ordering-of-the-per-superblock-inode-lists-8.patch
writeback-fix-ntfs-with-sb_has_dirty_inodes.patch
writeback-remove-pages_skipped-accounting-in-__block_write_full_page.patch
writeback-remove-pages_skipped-accounting-in-__block_write_full_page-fix.patch
writeback-introduce-writeback_controlmore_io-to-indicate-more-io.patch
writeback-remove-unnecessary-wait-in-throttle_vm_writeout.patch
-
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