diff options
| author | Chris Mason <mason@suse.com> | 2006-02-01 12:06:49 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-01 17:53:26 +0100 |
| commit | e0e851cf30f1a9bd2e2a7624e9810378d6a2b072 (patch) | |
| tree | a8cf33d9b22594fb5c1094bd8b15f2f315b53f2d /fs/reiserfs/inode.c | |
| parent | [PATCH] reiserfs: zero b_private when allocating buffer heads (diff) | |
| download | linux-e0e851cf30f1a9bd2e2a7624e9810378d6a2b072.tar.xz linux-e0e851cf30f1a9bd2e2a7624e9810378d6a2b072.zip | |
[PATCH] reiserfs: reiserfs hang and performance fix for data=journal mode
In data=journal mode, reiserfs writepage needs to make sure not to trigger
transactions while being run under PF_MEMALLOC. This patch makes sure to
redirty the page instead of forcing a transaction start in this case.
Also, calling filemap_fdata* in order to trigger io on the block device can
cause lock inversions on the page lock. Instead, do simple batching from
flush_commit_list.
Signed-off-by: Chris Mason <mason@suse.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/reiserfs/inode.c')
| -rw-r--r-- | fs/reiserfs/inode.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 60e2f2344703..b33d67bba2fd 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -2363,6 +2363,13 @@ static int reiserfs_write_full_page(struct page *page, int bh_per_page = PAGE_CACHE_SIZE / s->s_blocksize; th.t_trans_id = 0; + /* no logging allowed when nonblocking or from PF_MEMALLOC */ + if (checked && (current->flags & PF_MEMALLOC)) { + redirty_page_for_writepage(wbc, page); + unlock_page(page); + return 0; + } + /* The page dirty bit is cleared before writepage is called, which * means we have to tell create_empty_buffers to make dirty buffers * The page really should be up to date at this point, so tossing |