You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

Thomas Gleixner 8b0b1db013 remove put_cpu_no_resched() ... put_cpu_no_resched() is an optimization of put_cpu() which unfortunately can cause high latencies. The nfs iostats code uses put_cpu_no_resched() in a code sequence where a reschedule request caused by an interrupt between the get_cpu() and the put_cpu_no_resched() can delay the reschedule for at least HZ. The other users of put_cpu_no_resched() optimize correctly in interrupt code, but there is no real harm in using the put_cpu() function which is an alias for preempt_enable(). The extra check of the preemmpt count is not as critical as the potential source of missing a reschedule. Debugged in the preempt-rt tree and verified in mainline. Impact: remove a high latency source [akpm@linux-foundation.org: build fix] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Tony Luck <tony.luck@intel.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		16 years ago
..
Kconfig	…
Makefile	…
callback.c	…
callback.h	…
callback_proc.c	…
callback_xdr.c	…
client.c	…
delegation.c	…
delegation.h	…
dir.c	nfs: Fix NFS v4 client handling of MAY_EXEC in nfs_permission.	16 years ago
direct.c	…
file.c	NFS: Close page_mkwrite() races	16 years ago
fscache-index.c	…
fscache.c	…
fscache.h	…
getroot.c	…
idmap.c	…
inode.c	…
internal.h	…
iostat.h	remove put_cpu_no_resched()	16 years ago
mount_clnt.c	…
namespace.c	switch follow_down()	16 years ago
nfs2xdr.c	…
nfs3acl.c	…
nfs3proc.c	…
nfs3xdr.c	NFS: Fix the XDR iovec calculation in nfs3_xdr_setaclargs	16 years ago
nfs4_fs.h	…
nfs4namespace.c	…
nfs4proc.c	NFSv4: Fix the case where NFSv4 renewal fails	16 years ago
nfs4renewd.c	…
nfs4state.c	…
nfs4xdr.c	…
nfsroot.c	nfs: fix build error in nfsroot with initconst	16 years ago
pagelist.c	…
proc.c	…
read.c	…
super.c	Push BKL down into ->remount_fs()	16 years ago
symlink.c	…
sysctl.c	…
unlink.c	…
write.c	…