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| author | Sage Weil <sage@inktank.com> | 2013-07-08 11:24:48 -0700 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-07-08 14:52:10 -0700 |
| commit | 09d258b70a28e5cea555b9d7e215fe41d6b84577 (patch) | |
| tree | 4181a9ebb3edf19b080dca485ad311c789924aee /src/doc/lazy_posix.txt | |
| parent | c3b684932bad31fc853ad556d16e1e4a9926486e (diff) | |
| download | ceph-wip-lazy-cuttlefish.tar.gz | |
client: remove O_LAZYwip-lazy-cuttlefish
The once-upon-a-time unique O_LAZY value I chose forever ago is now
O_NOATIME, which means that some clients are choosing relaxed
consistency without meaning to.
It is highly unlikely that a real O_LAZY will ever exist, and we can
select it in the ceph case with the ioctl or libcephfs call, so drop
any support for doing this via open(2) flags.
Update doc/lazy_posix.txt file re: lazy io.
Backport: cuttlefish
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Greg Farnum <greg@inktank.com>
(cherry picked from commit 94afedf02d07ad4678222aa66289a74b87768810)
Diffstat (limited to 'src/doc/lazy_posix.txt')
| -rw-r--r-- | src/doc/lazy_posix.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/doc/lazy_posix.txt b/src/doc/lazy_posix.txt index 1d226cd03d8..a7bc34e3030 100644 --- a/src/doc/lazy_posix.txt +++ b/src/doc/lazy_posix.txt @@ -25,7 +25,7 @@ http://www.usenix.org/events/fast05/wips/slides/welch.pdf -- lazy i/o integrity - O_LAZY to open(2) + FIXME: currently missing call to flag an Fd/file has lazy. used to be O_LAZY on open, but no more. * relax data coherency * writes may not be visible until lazyio_propagate, fsync, close @@ -50,4 +50,4 @@ int lockg(int fd, int cmd, lgid_t *lgid) int openg(char *path, int mode, fh_t *handle); portable file handle -int sutoc(fh_t *fh);
\ No newline at end of file +int sutoc(fh_t *fh); |