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| author | David Howells <dhowells@redhat.com> | 2017-03-16 16:27:49 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2017-03-16 16:29:30 +0000 |
| commit | c5051c7bc777dffa5661569dec5997f432b9a34a (patch) | |
| tree | 1a7e785c0feb49c4c83eea20ab00e24f99c7fca1 /fs | |
| parent | 65a151094edeb04e8f5f6f1502028e2383e81bb8 (diff) | |
| download | linux-exynos-c5051c7bc777dffa5661569dec5997f432b9a34a.tar.gz linux-exynos-c5051c7bc777dffa5661569dec5997f432b9a34a.tar.bz2 linux-exynos-c5051c7bc777dffa5661569dec5997f432b9a34a.zip | |
afs: Don't wait for page writeback with the page lock held
Drop the page lock before waiting for page writeback.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/afs/write.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/afs/write.c b/fs/afs/write.c index e5f150bccfb5..2d2fccd5044b 100644 --- a/fs/afs/write.c +++ b/fs/afs/write.c @@ -518,17 +518,16 @@ static int afs_writepages_region(struct address_space *mapping, */ lock_page(page); - if (page->mapping != mapping) { + if (page->mapping != mapping || !PageDirty(page)) { unlock_page(page); put_page(page); continue; } - if (wbc->sync_mode != WB_SYNC_NONE) - wait_on_page_writeback(page); - - if (PageWriteback(page) || !PageDirty(page)) { + if (PageWriteback(page)) { unlock_page(page); + if (wbc->sync_mode != WB_SYNC_NONE) + wait_on_page_writeback(page); put_page(page); continue; } |