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authorLinus Torvalds <torvalds@linux-foundation.org>2015-07-06 02:24:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-07-06 02:24:54 +0300
commit1c4c7159ed2468f3ac4ce5a7f08d79663d381a93 (patch)
treebca0b61fc4a04711e0322dd9eb4a2f3c55ddf4c5 /fs/ext4/mballoc.c
parentd770e558e21961ad6cfdf0ff7df0eb5d7d4f0754 (diff)
parent7444a072c387a93ebee7066e8aee776954ab0e41 (diff)
downloadlinux-1c4c7159ed2468f3ac4ce5a7f08d79663d381a93.tar.xz
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 bugfixes from Ted Ts'o: "Bug fixes (all for stable kernels) for ext4: - address corner cases for indirect blocks->extent migration - fix reserved block accounting invalidate_page when page_size != block_size (i.e., ppc or 1k block size file systems) - fix deadlocks when a memcg is under heavy memory pressure - fix fencepost error in lazytime optimization" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: replace open coded nofail allocation in ext4_free_blocks() ext4: correctly migrate a file with a hole at the beginning ext4: be more strict when migrating to non-extent based file ext4: fix reservation release on invalidatepage for delalloc fs ext4: avoid deadlocks in the writeback path by using sb_getblk_gfp bufferhead: Add _gfp version for sb_getblk() ext4: fix fencepost error in lazytime optimization
Diffstat (limited to 'fs/ext4/mballoc.c')
-rw-r--r--fs/ext4/mballoc.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index f6aedf88da43..34b610ea5030 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4816,18 +4816,12 @@ do_more:
/*
* blocks being freed are metadata. these blocks shouldn't
* be used until this transaction is committed
+ *
+ * We use __GFP_NOFAIL because ext4_free_blocks() is not allowed
+ * to fail.
*/
- retry:
- new_entry = kmem_cache_alloc(ext4_free_data_cachep, GFP_NOFS);
- if (!new_entry) {
- /*
- * We use a retry loop because
- * ext4_free_blocks() is not allowed to fail.
- */
- cond_resched();
- congestion_wait(BLK_RW_ASYNC, HZ/50);
- goto retry;
- }
+ new_entry = kmem_cache_alloc(ext4_free_data_cachep,
+ GFP_NOFS|__GFP_NOFAIL);
new_entry->efd_start_cluster = bit;
new_entry->efd_group = block_group;
new_entry->efd_count = count_clusters;