Revision 85a64889492b45f931ddac87ec09d84aa7347ee1 authored by Jonathan Lallinger on 29 September 2011, 07:58:41 UTC, committed by David S. Miller on 29 September 2011, 18:57:19 UTC
In the rds_iw_mr_pool struct the free_pinned field keeps track of memory pinned by free MRs. While this field is incremented properly upon allocation, it is never decremented upon unmapping. This would cause the rds_rdma module to crash the kernel upon unloading, by triggering the BUG_ON in the rds_iw_destroy_mr_pool function. This change keeps track of the MRs that become unpinned, so that free_pinned can be decremented appropriately. Signed-off-by: Jonathan Lallinger <jonathan@ogc.us> Signed-off-by: Steve Wise <swise@ogc.us> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 605b91c
Kconfig
config CACHEFILES
tristate "Filesystem caching on files"
depends on FSCACHE && BLOCK
help
This permits use of a mounted filesystem as a cache for other
filesystems - primarily networking filesystems - thus allowing fast
local disk to enhance the speed of slower devices.
See Documentation/filesystems/caching/cachefiles.txt for more
information.
config CACHEFILES_DEBUG
bool "Debug CacheFiles"
depends on CACHEFILES
help
This permits debugging to be dynamically enabled in the filesystem
caching on files module. If this is set, the debugging output may be
enabled by setting bits in /sys/modules/cachefiles/parameter/debug or
by including a debugging specifier in /etc/cachefilesd.conf.
config CACHEFILES_HISTOGRAM
bool "Gather latency information on CacheFiles"
depends on CACHEFILES && PROC_FS
help
This option causes latency information to be gathered on CacheFiles
operation and exported through file:
/proc/fs/cachefiles/histogram
The generation of this histogram adds a certain amount of overhead to
execution as there are a number of points at which data is gathered,
and on a multi-CPU system these may be on cachelines that keep
bouncing between CPUs. On the other hand, the histogram may be
useful for debugging purposes. Saying 'N' here is recommended.
See Documentation/filesystems/caching/cachefiles.txt for more
information.
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...