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nilfs2: do not use async write flag for segment summary buffers 

The async write flag is introduced to nilfs2 in the commit 7f42ec3941
("nilfs2: fix issue with race condition of competition between segments
for dirty blocks"), but the flag only makes sense for data buffers and
btree node buffers.  It is not needed for segment summary buffers.

This gets rid of the latter uses as part of refactoring of atomic bit
operations on buffer state bitmap.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Vyacheslav Dubeyko <slava@dubeyko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ryusuke Konishi 2015-04-16 12:46:25 -07:00 committed by Linus Torvalds
parent f8ccad2164
commit 6fb7a61e98
1 changed files with 0 additions and 3 deletions
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3
fs/nilfs2/segment.c
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@ -1588,7 +1588,6 @@ static void nilfs_segctor_prepare_write(struct nilfs_sc_info *sci)
list_for_each_entry(bh, &segbuf->sb_segsum_buffers,
b_assoc_buffers) {
set_buffer_async_write(bh);
if (bh->b_page != bd_page) {
if (bd_page) {
lock_page(bd_page);
@ -1688,7 +1687,6 @@ static void nilfs_abort_logs(struct list_head *logs, int err)
list_for_each_entry(segbuf, logs, sb_list) {
list_for_each_entry(bh, &segbuf->sb_segsum_buffers,
b_assoc_buffers) {
clear_buffer_async_write(bh);
if (bh->b_page != bd_page) {
if (bd_page)
end_page_writeback(bd_page);
@ -1768,7 +1766,6 @@ static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci)
b_assoc_buffers) {
set_buffer_uptodate(bh);
clear_buffer_dirty(bh);
clear_buffer_async_write(bh);
if (bh->b_page != bd_page) {
if (bd_page)
end_page_writeback(bd_page);