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| author | Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | 2010-04-19 13:34:11 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-05-03 10:07:31 +0200 |
| commit | 4899d10d142e97eea8f64141a3507b2ee1a64f52 (patch) | |
| tree | 33961747d5ae2927bd04120140f1956f0a022c66 /qemu-img.texi | |
| parent | 508e0893686794be55cfaa336fea584b16a471d9 (diff) | |
| download | qemu-4899d10d142e97eea8f64141a3507b2ee1a64f52.tar.gz | |
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>
Diffstat (limited to 'qemu-img.texi')
0 files changed, 0 insertions, 0 deletions