Nick Piggin c28cc36469 fs: fs_struct use seqlock ...

Use a seqlock in the fs_struct to enable us to take an atomic copy of the
complete cwd and root paths. Use this in the RCU lookup path to avoid a
thread-shared spinlock in RCU lookup operations.

Multi-threaded apps may now perform path lookups with scalability matching
multi-process apps. Operations such as stat(2) become very scalable for
multi-threaded workload.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>

2011-01-07 17:50:27 +11:00

..

acpi

ACPI: video: fix build for CONFIG_ACPI=n

2010-12-11 02:01:46 -05:00

asm-generic

asm-generic/stat.h: support 64-bit file time_t for stat()

2010-11-01 15:31:29 -04:00

crypto

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drm

drm/i915: announce to userspace that the bsd ring is coherent

2010-12-05 10:40:39 +00:00

keys

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linux

fs: fs_struct use seqlock

2011-01-07 17:50:27 +11:00

math-emu

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media

[media] wm8775: Revert changeset fcb9757333 to avoid a regression

2011-01-03 09:09:56 -02:00

mtd

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net

Revert "ipv4: Allow configuring subnets as local addresses"

2010-12-23 12:03:57 -08:00

pcmcia

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rdma

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rxrpc

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scsi

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

sound

ARM: mach-shmobile: ap4evb: FSI clock use proper process for HDMI

2010-11-24 15:29:56 +09:00

trace

ext4: Add new ext4 inode tracepoints

2010-11-08 13:51:33 -05:00

video

fbdev: da8xx: punt duplicated FBIO_WAITFORVSYNC define

2010-11-16 10:14:22 +09:00

xen

xen: Provide a variant of __RING_SIZE() that is an integer constant expression

2010-12-15 12:34:28 -08:00

Kbuild

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