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| author | Kent Overstreet <kmo@daterainc.com> | 2014-01-19 08:26:37 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-13 21:50:19 (GMT) |
| commit | 8cf2461787d8870b637f04c3c1cc9e7b2c3ade7d (patch) | |
| tree | 023b515195f3890c9e52e6061685b8675d5cfb41 /mm/msync.c | |
| parent | 13f048657763363335d585ec5ffc1212df77bc97 (diff) | |
| download | linux-fsl-qoriq-8cf2461787d8870b637f04c3c1cc9e7b2c3ade7d.tar.xz | |
percpu_ida: Make percpu_ida_alloc + callers accept task state bitmask
commit 6f6b5d1ec56acdeab0503d2b823f6f88a0af493e upstream.
This patch changes percpu_ida_alloc() + callers to accept task state
bitmask for prepare_to_wait() for code like target/iscsi that needs
it for interruptible sleep, that is provided in a subsequent patch.
It now expects TASK_UNINTERRUPTIBLE when the caller is able to sleep
waiting for a new tag, or TASK_RUNNING when the caller cannot sleep,
and is forced to return a negative value when no tags are available.
v2 changes:
- Include blk-mq + tcm_fc + vhost/scsi + target/iscsi changes
- Drop signal_pending_state() call
v3 changes:
- Only call prepare_to_wait() + finish_wait() when != TASK_RUNNING
(PeterZ)
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/msync.c')
0 files changed, 0 insertions, 0 deletions