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| author | Mikulas Patocka <mpatocka@redhat.com> | 2015-02-13 08:23:52 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-02-16 11:11:12 -0500 |
| commit | cf2f1abfbd0dba701f7f16ef619e4d2485de3366 (patch) | |
| tree | 77faadd11b83b4faa5460be407572167e798b7a9 /drivers/md/dm-zero.c | |
| parent | f3396c58fd8442850e759843457d78b6ec3a9589 (diff) | |
| download | op-kernel-dev-cf2f1abfbd0dba701f7f16ef619e4d2485de3366.zip op-kernel-dev-cf2f1abfbd0dba701f7f16ef619e4d2485de3366.tar.gz | |
dm crypt: don't allocate pages for a partial request
Change crypt_alloc_buffer so that it only ever allocates pages for a
full request. This is a prerequisite for the commit "dm crypt: offload
writes to thread".
This change simplifies the dm-crypt code at the expense of reduced
throughput in low memory conditions (where allocation for a partial
request is most useful).
Note: the next commit ("dm crypt: avoid deadlock in mempools") is needed
to fix a theoretical deadlock.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-zero.c')
0 files changed, 0 insertions, 0 deletions
