Merge git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs

* git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs:
  [LogFS] Erase new journal segments
  [LogFS] Move reserved segments with journal
  [LogFS] Clear PagePrivate when moving journal
  Simplify and fix pad_wbuf
  Prevent data corruption in logfs_rewrite_block()
  Use deactivate_locked_super
  Fix logfs_get_sb_final error path
  Write out both superblocks on mismatch
  Prevent schedule while atomic in __logfs_readdir
  Plug memory leak in writeseg_end_io
  Limit max_pages for insane devices
  Open segment file before using it

1 files changed, 7 insertions, 2 deletions

diff --git a/fs/logfs/dev_bdev.c b/fs/logfs/dev_bdev.c
index 9718c22f186d..a5d0c56d3ebc 100644
--- a/fs/logfs/dev_bdev.c
+++ b/fs/logfs/dev_bdev.c
@@ -80,6 +80,7 @@ static void writeseg_end_io(struct bio *bio, int err)
                         prefetchw(&bvec->bv_page->flags);
 
                 end_page_writeback(page);
+                page_cache_release(page);
         } while (bvec >= bio->bi_io_vec);
         bio_put(bio);
         if (atomic_dec_and_test(&super->s_pending_writes))
@@ -97,8 +98,10 @@ static int __bdev_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
         unsigned int max_pages = queue_max_hw_sectors(q) >> (PAGE_SHIFT - 9);
         int i;
 
+        if (max_pages > BIO_MAX_PAGES)
+                max_pages = BIO_MAX_PAGES;
         bio = bio_alloc(GFP_NOFS, max_pages);
-        BUG_ON(!bio); /* FIXME: handle this */
+        BUG_ON(!bio);
 
         for (i = 0; i < nr_pages; i++) {
                 if (i >= max_pages) {
@@ -191,8 +194,10 @@ static int do_erase(struct super_block *sb, u64 ofs, pgoff_t index,
         unsigned int max_pages = queue_max_hw_sectors(q) >> (PAGE_SHIFT - 9);
         int i;
 
+        if (max_pages > BIO_MAX_PAGES)
+                max_pages = BIO_MAX_PAGES;
         bio = bio_alloc(GFP_NOFS, max_pages);
-        BUG_ON(!bio); /* FIXME: handle this */
+        BUG_ON(!bio);
 
         for (i = 0; i < nr_pages; i++) {
                 if (i >= max_pages) {