Revision 23918b03060f6e572168fdde1798a905679d2e06 authored by Trond Myklebust on 20 November 2008, 21:06:21 UTC, committed by Linus Torvalds on 20 November 2008, 21:17:40 UTC
Fix a regression reported by Max Kellermann whereby kernel profiling showed that his clients were spending 45% of their time in rpcauth_lookup_credcache. It turns out that although his processes had identical uid/gid/groups, generic_match() was failing to detect this, because the task->group_info pointers were not shared. This again lead to the creation of a huge number of identical credentials at the RPC layer. The regression is fixed by comparing the contents of task->group_info if the actual pointers are not identical. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 29.1 KB |
| Makefile | -rw-r--r-- | 1.1 KB |
| calibrate.c | -rw-r--r-- | 5.0 KB |
| do_mounts.c | -rw-r--r-- | 8.9 KB |
| do_mounts.h | -rw-r--r-- | 1.3 KB |
| do_mounts_initrd.c | -rw-r--r-- | 3.2 KB |
| do_mounts_md.c | -rw-r--r-- | 7.9 KB |
| do_mounts_rd.c | -rw-r--r-- | 9.4 KB |
| initramfs.c | -rw-r--r-- | 12.7 KB |
| main.c | -rw-r--r-- | 21.1 KB |
| noinitramfs.c | -rw-r--r-- | 1.4 KB |
| version.c | -rw-r--r-- | 1.1 KB |
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