diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2010-06-16 16:38:15 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-06-22 14:38:02 +0200 |
| commit | f08145fe16470aca09304099888f68cfbc5d1de7 (patch) | |
| tree | 199785df12db2df24365f4e991a5e31f69ebb77d /block/cow.c | |
| parent | 3b5276b5ec52f461f23e62d4560686f10d27605e (diff) | |
block: Add bdrv_(p)write_sync
Add new functions that write and flush the written data to disk immediately.
This is what needs to be used for image format metadata to maintain integrity
for cache=... modes that don't use O_DSYNC. (Actually, we only need barriers,
and therefore the functions are defined as such, but flushes is what is
implemented in this patch - we can try to change that later)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/cow.c')
0 files changed, 0 insertions, 0 deletions