diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-08 17:42:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-08 17:42:32 -0700 |
| commit | a7b334de4d3651491ccd8c52c744af88d48785b9 (patch) | |
| tree | deba5b23183c0c8e9f75b86810b7628ce6d792d5 /fs/ext3/inode.c | |
| parent | 72ae9e092c8a62ef60a364ec812f5f88eb6442fc (diff) | |
| parent | 430db323fae7665da721768949ade6304811c648 (diff) | |
Merge branch 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext3: Try to avoid starting a transaction in writepage for data=writepage
block_write_full_page: switch synchronous writes to use WRITE_SYNC_PLUG
Diffstat (limited to 'fs/ext3/inode.c')
| -rw-r--r-- | fs/ext3/inode.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index 466a332e0bd..fcfa2436185 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -1521,12 +1521,16 @@ static int ext3_ordered_writepage(struct page *page, if (!page_has_buffers(page)) { create_empty_buffers(page, inode->i_sb->s_blocksize, (1 << BH_Dirty)|(1 << BH_Uptodate)); - } else if (!walk_page_buffers(NULL, page_buffers(page), 0, PAGE_CACHE_SIZE, NULL, buffer_unmapped)) { - /* Provide NULL instead of get_block so that we catch bugs if buffers weren't really mapped */ - return block_write_full_page(page, NULL, wbc); + page_bufs = page_buffers(page); + } else { + page_bufs = page_buffers(page); + if (!walk_page_buffers(NULL, page_bufs, 0, PAGE_CACHE_SIZE, + NULL, buffer_unmapped)) { + /* Provide NULL get_block() to catch bugs if buffers + * weren't really mapped */ + return block_write_full_page(page, NULL, wbc); + } } - page_bufs = page_buffers(page); - handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode)); if (IS_ERR(handle)) { @@ -1581,6 +1585,15 @@ static int ext3_writeback_writepage(struct page *page, if (ext3_journal_current_handle()) goto out_fail; + if (page_has_buffers(page)) { + if (!walk_page_buffers(NULL, page_buffers(page), 0, + PAGE_CACHE_SIZE, NULL, buffer_unmapped)) { + /* Provide NULL get_block() to catch bugs if buffers + * weren't really mapped */ + return block_write_full_page(page, NULL, wbc); + } + } + handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode)); if (IS_ERR(handle)) { ret = PTR_ERR(handle); |