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authorAlessio Balsini <balsini@android.com>2019-08-07 01:48:28 +0100
committerJens Axboe <axboe@kernel.dk>2019-08-08 21:39:02 -0600
commitfdbe4eeeb1aac219b14f10c0ed31ae5d1123e9b8 (patch)
tree4d0cbbd9751526c4350de20409e4cbf2402e78e9 /drivers/lightnvm
parent79e178f4383a3a645f76bc2dd44c477b361c6a98 (diff)
loop: Add LOOP_SET_DIRECT_IO to compat ioctl
Enabling Direct I/O with loop devices helps reducing memory usage by avoiding double caching. 32 bit applications running on 64 bits systems are currently not able to request direct I/O because is missing from the lo_compat_ioctl. This patch fixes the compatibility issue mentioned above by exporting LOOP_SET_DIRECT_IO as additional lo_compat_ioctl() entry. The input argument for this ioctl is a single long converted to a 1-bit boolean, so compatibility is preserved. Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Alessio Balsini <balsini@android.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm')
0 files changed, 0 insertions, 0 deletions