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Remove CAS_FLUSH_SUPPORTED

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It's defined on every single supported kernel, so there is actually no need
for this define at all.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Robert Baldyga
2021-05-19 23:34:13 +02:00
parent b82b338c53
commit 7f89e59b1a
3 changed files with 0 additions and 28 deletions
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13
modules/cas_cache/volume/vol_block_dev_bottom.c
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@@ -229,7 +229,6 @@ CAS_DECLARE_BLOCK_CALLBACK(cas_bd_io_end, struct bio *bio,
static void block_dev_submit_flush(struct ocf_io *io)
{
#ifdef CAS_FLUSH_SUPPORTED
struct blkio *blkio = cas_io_to_blkio(io);
struct bd_object *bdobj = bd_object(ocf_io_get_volume(io));
struct block_device *bdev = bdobj->btm_bd;
@@ -271,18 +270,6 @@ static void block_dev_submit_flush(struct ocf_io *io)
out:
cas_bd_io_end(io, blkio->error);
#else
/* Running operating system without support for REQ_FLUSH
* (i.e. SLES 11 SP 1) CAS cannot use flushing requests to
* handle power-fail safe Write-Back
*/
io->end(io, -ENOTSUPP);
/* on SLES 11 SP 1 powerfail safety can only be achieved
* through disabling volatile write cache of disk itself.
*/
#endif
}
void block_dev_submit_discard(struct ocf_io *io)