The patch titled
aoe: only install new AoE device once
has been removed from the -mm tree. Its filename was
aoe-only-install-new-aoe-device-once.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: aoe: only install new AoE device once
From: "Ed L. Cashin" <ecashin@xxxxxxxxxx>
An aoe driver user who had about 70 AoE targets found that he was hitting a
BUG in sysfs_create_file because the aoe driver was trying to tell the kernel
about an AoE device more than once. Each AoE device was reachable by several
local network interfaces, and multiple ATA device indentify responses were
returning from that single device.
This patch eliminates a race condition so that aoe always informs the block
layer of a new AoE device once in the presence of multiple incoming ATA device
identify responses.
Signed-off-by: Ed L. Cashin <ecashin@xxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/block/aoe/aoecmd.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN drivers/block/aoe/aoecmd.c~aoe-only-install-new-aoe-device-once drivers/block/aoe/aoecmd.c
--- a/drivers/block/aoe/aoecmd.c~aoe-only-install-new-aoe-device-once
+++ a/drivers/block/aoe/aoecmd.c
@@ -698,6 +698,8 @@ ataid_complete(struct aoedev *d, struct
d->fw_ver, (long long)ssize);
d->ssize = ssize;
d->geo.start = 0;
+ if (d->flags & (DEVFL_GDALLOC|DEVFL_NEWSIZE))
+ return;
if (d->gd != NULL) {
d->gd->capacity = ssize;
d->flags |= DEVFL_NEWSIZE;
_
Patches currently in -mm which might be from ecashin@xxxxxxxxxx are
origin.patch
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