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path: root/fs/autofs4/Kconfig
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config AUTOFS4_FS
	tristate "Kernel automounter version 4 support (also supports v3)"
	help
	  The automounter is a tool to automatically mount remote file systems
	  on demand. This implementation is partially kernel-based to reduce
	  overhead in the already-mounted case; this is unlike the BSD
	  automounter (amd), which is a pure user space daemon.

	  To use the automounter you need the user-space tools from
	  <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
	  want to answer Y to "NFS file system support", below.

	  To compile this support as a module, choose M here: the module will be
	  called autofs4.  You will need to add "alias autofs autofs4" to your
	  modules configuration file.

	  If you are not a part of a fairly large, distributed network or
	  don't have a laptop which needs to dynamically reconfigure to the
	  local network, you probably do not need an automounter, and can say
	  N here.
e7b5c94eca944be9cd23dfc752'>dfef358bd1beb4e7b5c94eca944be9cd23dfc752 (patch) treeb9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c /sound/pci/oxygen/virtuoso.c parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
PCI/MSI: Don't apply affinity if there aren't enough vectors left
Bart reported a problem wіth an out of bounds access in the low-level IRQ affinity code, which we root caused to the qla2xxx driver assigning all its MSI-X vectors to the pre and post vectors, and not having any left for the actually spread IRQs. Fix this issue by not asking for affinity assignment when there are no vectors to assign left. Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()") Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'sound/pci/oxygen/virtuoso.c')