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authorSuzuki K P <suzuki@in.ibm.com>2006-12-06 20:35:16 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 08:39:30 -0800
commit57881dd9df40b76dc7fc6a0d13fd75f337accb32 (patch)
tree088010827c14fbe75628c64848839616175bb9d6 /fs/partitions/check.c
parent5127d002f9769ba6b1691de78dd3a5c14635e183 (diff)
[PATCH] Fix check_partition routines
check_partition() stops its probe once it hits an I/O error from the partition checkers. This would prevent the actual partition checker getting a chance to verify the partition. So this patch lets check_partition() continue probing untill it hits a success while recording the I/O error which might have been reported by the checking routines. Also, it does some cleanup of the partition methods for ibm, atari and amiga to return -1 upon hitting an I/O error. Signed-off-by: Suzuki K P <suzuki@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/partitions/check.c')
-rw-r--r--fs/partitions/check.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 0b6113ba3b79..1901137f4eca 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -153,7 +153,7 @@ static struct parsed_partitions *
check_partition(struct gendisk *hd, struct block_device *bdev)
{
struct parsed_partitions *state;
- int i, res;
+ int i, res, err;
state = kmalloc(sizeof(struct parsed_partitions), GFP_KERNEL);
if (!state)
@@ -165,13 +165,24 @@ check_partition(struct gendisk *hd, struct block_device *bdev)
sprintf(state->name, "p");
state->limit = hd->minors;
- i = res = 0;
+ i = res = err = 0;
while (!res && check_part[i]) {
memset(&state->parts, 0, sizeof(state->parts));
res = check_part[i++](state, bdev);
+ if (res < 0) {
+ /* We have hit an I/O error which we don't report now.
+ * But record it, and let the others do their job.
+ */
+ err = res;
+ res = 0;
+ }
+
}
if (res > 0)
return state;
+ if (!err)
+ /* The partition is unrecognized. So report I/O errors if there were any */
+ res = err;
if (!res)
printk(" unknown partition table\n");
else if (warn_no_part)