AuxXxilium/linux_dsm_epyc7002
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4237e0d3de
linux_dsm_epyc7002/fs/proc
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Alexey Dobriyan 4237e0d3de proc: less LOCK operations during lookup 
Pseudo-code for lookup effectively is:

	LOCK kernel
	LOCK proc_subdir_lock
		find PDE
		UNLOCK proc_subdir_lock

		get inode

		LOCK proc_subdir_lock
		goto unlock
	UNLOCK proc_subdir_lock
	UNLOCK kernel

We can get rid of LOCK/UNLOCK pair after getting inode simply by jumping
to unlock_kernel() directly.

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:23 -08:00
..
array.c Add 64-bit capability support to the kernel 2008-02-05 09:44:20 -08:00
base.c Fix /proc dcache deadlock in do_exit 2008-02-05 09:44:18 -08:00
generic.c proc: less LOCK operations during lookup 2008-02-08 09:22:23 -08:00
inode-alloc.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
inode.c proc: remove MODULE_LICENSE 2008-02-08 09:22:23 -08:00
internal.h maps4: add /proc/pid/pagemap interface 2008-02-05 09:44:16 -08:00
kcore.c is_vmalloc_addr(): Check if an address is within the vmalloc boundaries 2008-02-05 09:44:14 -08:00
kmsg.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
Makefile [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
mmu.c fs/proc/mmu.c: headers butchery 2007-10-17 08:42:48 -07:00
nommu.c [PATCH] mark struct file_operations const 6 2007-02-12 09:48:45 -08:00
proc_devtree.c [POWERPC] Make struct property's value a void * 2007-04-13 03:55:18 +10:00
proc_misc.c proc: loadavg reading race 2008-02-06 10:41:04 -08:00
proc_net.c [ATM]: Oops reading net/atm/arp 2008-01-28 15:01:36 -08:00
proc_sysctl.c Fix pointer mismatches in proc_sysctl.c 2007-10-25 15:16:49 -07:00
proc_tty.c Make /proc/tty/drivers use seq_list_xxx helpers 2007-07-16 09:05:42 -07:00
root.c proc: fix proc_dir_entry refcounting 2007-12-05 09:21:20 -08:00
task_mmu.c maps4: make page monitoring /proc file optional 2008-02-05 09:44:17 -08:00
task_nommu.c restrict reading from /proc/<pid>/maps to those who share ->mm or can ptrace pid 2008-01-02 13:13:27 -08:00
vmcore.c [PATCH] i386: Allow i386 crash kernels to handle x86_64 dumps 2007-05-02 19:27:09 +02:00