linux-ext4 - [Bug 12829] kernel complains on ENOSPC

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Message-Id: <20090310163824.6C767108042@picon.linux-foundation.org>
Date:	Tue, 10 Mar 2009 09:38:24 -0700 (PDT)
From:	bugme-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 12829] kernel complains on ENOSPC

http://bugzilla.kernel.org/show_bug.cgi?id=12829





------- Comment #4 from aneesh.kumar@...ux.vnet.ibm.com  2009-03-10 09:38 -------
This patch will not fix the problem. But i guess we need this change

-aneesh

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 4415bee..671f215 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4652,11 +4652,11 @@ out1:
        if (ar->len < inquota)
                DQUOT_FREE_BLOCK(ar->inode, inquota - ar->len);
 out3:
-       if (!ar->len) {
+       if (ar->len < reserv_blks) {
                if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag)
                        /* release all the reserved blocks if non delalloc */
                        percpu_counter_sub(&sbi->s_dirtyblocks_counter,
-                                               reserv_blks);
+                                               reserv_blks - ar->len);
        }

        trace_mark(ext4_allocate_blocks,


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