diff options
| author | David Vrabel <david.vrabel@csr.com> | 2008-10-20 16:07:19 +0100 |
|---|---|---|
| committer | David Vrabel <david.vrabel@csr.com> | 2008-10-20 16:07:19 +0100 |
| commit | 61e0e79ee3c609eb34edf2fe023708cba6a79b1f (patch) | |
| tree | 663deacffd4071120dc9badb70428fe5f124c7b9 /mm/page-writeback.c | |
| parent | c15895ef30c2c03e99802951787183039a349d32 (diff) | |
| parent | 0cfd81031a26717fe14380d18275f8e217571615 (diff) | |
Merge branch 'master' into for-upstream
Conflicts:
Documentation/ABI/testing/sysfs-bus-usb
drivers/Makefile
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 24de8b65fdb..b40f6d5f8fe 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -7,7 +7,7 @@ * Contains functions related to writing back dirty pages at the * address_space level. * - * 10Apr2002 akpm@zip.com.au + * 10Apr2002 Andrew Morton * Initial version */ @@ -876,6 +876,7 @@ int write_cache_pages(struct address_space *mapping, pgoff_t end; /* Inclusive */ int scanned = 0; int range_whole = 0; + long nr_to_write = wbc->nr_to_write; if (wbc->nonblocking && bdi_write_congested(bdi)) { wbc->encountered_congestion = 1; @@ -939,7 +940,7 @@ retry: unlock_page(page); ret = 0; } - if (ret || (--(wbc->nr_to_write) <= 0)) + if (ret || (--nr_to_write <= 0)) done = 1; if (wbc->nonblocking && bdi_write_congested(bdi)) { wbc->encountered_congestion = 1; @@ -958,11 +959,12 @@ retry: index = 0; goto retry; } - if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0)) - mapping->writeback_index = index; + if (!wbc->no_nrwrite_index_update) { + if (wbc->range_cyclic || (range_whole && nr_to_write > 0)) + mapping->writeback_index = index; + wbc->nr_to_write = nr_to_write; + } - if (wbc->range_cont) - wbc->range_start = index << PAGE_CACHE_SHIFT; return ret; } EXPORT_SYMBOL(write_cache_pages); |