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| author | Hugh Dickins <hugh@veritas.com> | 2008-07-23 21:27:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-24 10:47:16 -0700 |
| commit | bcd78e49613c41b5bed96fa288e983876f286a59 (patch) | |
| tree | 0ad2591ca2e0d46923d8ec489ef7378f1a3c0d8e /mm/readahead.c | |
| parent | 11fa977ecde652ab324dd79c179deb52e82a8df1 (diff) | |
| download | kernel_samsung_smdk4412-bcd78e49613c41b5bed96fa288e983876f286a59.zip kernel_samsung_smdk4412-bcd78e49613c41b5bed96fa288e983876f286a59.tar.gz kernel_samsung_smdk4412-bcd78e49613c41b5bed96fa288e983876f286a59.tar.bz2 | |
tmpfs: support aio
We have a request for tmpfs to support the AIO interface: easily done, no
more than replacing the old shmem_file_read by shmem_file_aio_read,
cribbed from generic_file_aio_read. (In 2.6.25 its write side was already
changed to use generic_file_aio_write.)
Incorporate cleanups from Andrew Morton and Harvey Harrison.
Tests out fine with LTP's ltp-aiodio.sh, given hacks (not included) to
support O_DIRECT. tmpfs cannot honestly support O_DIRECT: its
cache-avoiding-IO nature is at odds with direct IO-avoiding-cache.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Tested-by: Lawrence Greenfield <leg@google.com>
Cc: Christoph Rohland <hans-christoph.rohland@sap.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/readahead.c')
0 files changed, 0 insertions, 0 deletions