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libext2fs: have UNIX IO manager use pread/pwrite
authorDarrick J. Wong <darrick.wong@oracle.com>
Sat, 2 Aug 2014 23:18:03 +0000 (19:18 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Sat, 2 Aug 2014 23:18:03 +0000 (19:18 -0400)
commitbaa3544609da3c9bbe7e253b83f32df74e1015de
tree837d6897553dd9fba15353e72eaa39d27c0d850etree | snapshot
parentaf7dbe3a11864e9b515709b62ee6bf2162bfa67bcommit | diff
libext2fs: have UNIX IO manager use pread/pwrite

If pread/pwrite are present, have the UNIX IO manager use them for
aligned IOs (instead of the current seek -> read/write), thereby
saving us a (minor) amount of system call overhead.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
configure diff | blob | blame | history
configure.in diff | blob | blame | history
lib/config.h.in diff | blob | blame | history
lib/ext2fs/unix_io.c diff | blob | blame | history
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