diff options
author | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2015-01-07 18:05:34 +0200 |
---|---|---|
committer | Jens Axboe <axboe@fb.com> | 2015-01-13 21:58:11 -0700 |
commit | dd22f551ac0ad366f92f601835f6623b83adc331 (patch) | |
tree | 47f6c4f274b3b6989869734b32afdc2e5d85769d /block | |
parent | c761d96b079e99d106fa4064e730ef7d0f312f9d (diff) | |
download | linux-stable-dd22f551ac0ad366f92f601835f6623b83adc331.tar.gz linux-stable-dd22f551ac0ad366f92f601835f6623b83adc331.tar.bz2 linux-stable-dd22f551ac0ad366f92f601835f6623b83adc331.zip |
block: Change direct_access calling convention
In order to support accesses to larger chunks of memory, pass in a
'size' parameter (counted in bytes), and return the amount available at
that address.
Add a new helper function, bdev_direct_access(), to handle common
functionality including partition handling, checking the length requested
is positive, checking for the sector being page-aligned, and checking
the length of the request does not pass the end of the partition.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Boaz Harrosh <boaz@plexistor.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions