The patch titled
ext3 filesystem bogus ENOSPC with reservation fix
has been added to the -mm tree. Its filename is
ext3-filesystem-bogus-enospc-with-reservation-fix.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: ext3 filesystem bogus ENOSPC with reservation fix
From: Mingming Cao <cmm@xxxxxxxxxx>
To handle the earlier bogus ENOSPC error caused by filesystem full of block
reservation, current code falls back to non block reservation, starts to
allocate block(s) from the goal allocation block group as if there is no
block reservation.
Current code needs to re-load the corresponding block group descriptor for
the initial goal block group in this case. The patch fixes this.
Signed-off-by: Mingming Cao <cmm@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/ext3/balloc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN fs/ext3/balloc.c~ext3-filesystem-bogus-enospc-with-reservation-fix fs/ext3/balloc.c
--- a/fs/ext3/balloc.c~ext3-filesystem-bogus-enospc-with-reservation-fix
+++ a/fs/ext3/balloc.c
@@ -1269,12 +1269,12 @@ ext3_fsblk_t ext3_new_blocks(handle_t *h
goal = le32_to_cpu(es->s_first_data_block);
group_no = (goal - le32_to_cpu(es->s_first_data_block)) /
EXT3_BLOCKS_PER_GROUP(sb);
+ goal_group = group_no;
+retry_alloc:
gdp = ext3_get_group_desc(sb, group_no, &gdp_bh);
if (!gdp)
goto io_error;
- goal_group = group_no;
-retry:
free_blocks = le16_to_cpu(gdp->bg_free_blocks_count);
/*
* if there is not enough free blocks to make a new resevation
@@ -1349,7 +1349,7 @@ retry:
if (my_rsv) {
my_rsv = NULL;
group_no = goal_group;
- goto retry;
+ goto retry_alloc;
}
/* No space left on the device */
*errp = -ENOSPC;
_
Patches currently in -mm which might be from cmm@xxxxxxxxxx are
ext3-filesystem-bogus-enospc-with-reservation-fix.patch
ext3-and-jbd-cleanup-remove-whitespace.patch
fix-ext3-mounts-at-16t.patch
-
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