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| author | Mikulas Patocka <mpatocka@redhat.com> | 2013-07-10 23:41:15 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2013-07-10 23:41:15 +0100 |
| commit | 1c0e883e86ece31880fac2f84b260545d66a39e0 (patch) | |
| tree | b56dd76ef7c1c0598af5b830e2a3d8f8a38f772b /drivers/md/dm-verity.c | |
| parent | 6c182cd88d179cbbd06f4f8a8a19b6977940753f (diff) | |
| download | linux-1c0e883e86ece31880fac2f84b260545d66a39e0.tar.bz2 | |
dm ioctl: set noio flag to avoid __vmalloc deadlock
Set noio flag while calling __vmalloc() because it doesn't fully respect
gfp flags to avoid a possible deadlock (see commit
502624bdad3dba45dfaacaf36b7d83e39e74b2d2).
This should be backported to stable kernels 3.8 and newer. The kernel 3.8
doesn't have memalloc_noio_save(), so we should set and restore process
flag PF_MEMALLOC instead.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-verity.c')
0 files changed, 0 insertions, 0 deletions