Stefan Hajnoczi 4899d10d14 raw-posix: Use pread/pwrite instead of lseek+read/write ...

This patch combines the lseek+read/write calls to use pread/pwrite
instead.  This will result in fewer system calls and is already used by
AIO.

Thanks to Jan Kiszka <jan.kiszka@siemens.com> for identifying excessive
lseek and Christoph Hellwig <hch@lst.de> for confirming that this
approach should work.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

2010-05-03 10:07:31 +02:00

..

blkdebug.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

bochs.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

cloop.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

cow.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

curl.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

dmg.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

nbd.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

parallels.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

qcow2-cluster.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

qcow2-refcount.c

qcow2: Avoid shadowing variable in alloc_clusters_noref()

2010-05-03 10:07:31 +02:00

qcow2-snapshot.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

qcow2.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

qcow2.h

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

qcow.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

raw-posix-aio.h

Remove aio_ctx from paio_* interface

2009-10-30 08:39:34 -05:00

raw-posix.c

raw-posix: Use pread/pwrite instead of lseek+read/write

2010-05-03 10:07:31 +02:00

raw-win32.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

raw.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

vdi.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

vmdk.c

vmdk: Convert to bdrv_open

2010-05-03 10:07:31 +02:00

vpc.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00

vvfat.c

block: Open the underlying image file in generic code

2010-05-03 10:07:30 +02:00