linux-ext4 - [PATCH -V3 09/11] ext4: Fix ext4 nomballoc allocator for ENOSPC

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Date:	Wed, 27 Aug 2008 20:58:34 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	cmm@...ibm.com, tytso@....edu, sandeen@...hat.com
Cc:	linux-ext4@...r.kernel.org,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: [PATCH -V3 09/11] ext4: Fix ext4 nomballoc allocator for ENOSPC

Make sure we  set windowsize to zero if the free
blocks left is less that window size. Otherwise
we skip some group with low freeblock count during
block allocation

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
---
 fs/ext4/balloc.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 7fdc236..a52fde3 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -1809,8 +1809,10 @@ ext4_fsblk_t ext4_old_new_blocks(handle_t *handle, struct inode *inode,
 	 * turn off reservation for this allocation
 	 */
 	if (my_rsv && (free_blocks < windowsz)
-		&& (rsv_is_empty(&my_rsv->rsv_window)))
+		&& (rsv_is_empty(&my_rsv->rsv_window))) {
 		my_rsv = NULL;
+		windowsz = 0;
+	}
 
 	if (free_blocks > 0) {
 		bitmap_bh = ext4_read_block_bitmap(sb, group_no);
-- 
1.6.0.1.90.g27a6e

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