Revision bbfa57c0f2243a7c31fd248d22e9861a2802cad5 authored by Sebastian Riemer on 21 February 2013, 02:28:09 UTC, committed by NeilBrown on 21 February 2013, 02:28:09 UTC
If an fsync occurs on a read-only array, we need to send a completion for the IO and may not increment the active IO count. Otherwise, we hit a bug trace and can't stop the MD array anymore. By advice of Christoph Hellwig we return success upon a flush request but we return -EROFS for other writes. We detect flush requests by checking if the bio has zero sectors. This patch is suitable to any -stable kernel to which it applies. Cc: Christoph Hellwig <hch@infradead.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: NeilBrown <neilb@suse.de> Cc: stable@vger.kernel.org Signed-off-by: Sebastian Riemer <sebastian.riemer@profitbricks.com> Reported-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Paul Menzel <paulepanter@users.sourceforge.net> Signed-off-by: NeilBrown <neilb@suse.de>
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| File | Mode | Size |
|---|---|---|
| drivers | ||
| include | ||
| kernel | ||
| os-Linux | ||
| scripts | ||
| sys-ia64 | ||
| sys-ppc | ||
| .gitignore | -rw-r--r-- | 53 bytes |
| Kconfig.char | -rw-r--r-- | 4.5 KB |
| Kconfig.common | -rw-r--r-- | 720 bytes |
| Kconfig.debug | -rw-r--r-- | 997 bytes |
| Kconfig.net | -rw-r--r-- | 8.5 KB |
| Kconfig.rest | -rw-r--r-- | 291 bytes |
| Kconfig.um | -rw-r--r-- | 5.2 KB |
| Makefile | -rw-r--r-- | 4.8 KB |
| Makefile-ia64 | -rw-r--r-- | 32 bytes |
| Makefile-os-Linux | -rw-r--r-- | 235 bytes |
| Makefile-ppc | -rw-r--r-- | 203 bytes |
| Makefile-skas | -rw-r--r-- | 290 bytes |
| defconfig | -rw-r--r-- | 21.2 KB |
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