diff options
| author | Pankaj Raghav <p.raghav@samsung.com> | 2023-02-17 17:44:44 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-10 09:34:34 +0100 |
| commit | 7ebde70510a12835a2a4168e2600b41456ffc314 (patch) | |
| tree | 7a803b43fae5bd770baa49e0e6fffdf3959c3e5d /lib/sbitmap.c | |
| parent | 48d46319bedc7d759eee5d087dd91ee665338e08 (diff) | |
brd: use radix_tree_maybe_preload instead of radix_tree_preload
commit 0aa2988e4fd23c0c8b33999d7b47dfbc5e6bf24b upstream.
Unconditionally calling radix_tree_preload_end() results in a OOPS
message as the preload is only conditionally called for
gfpflags_allow_blocking().
[ 20.267323] BUG: using smp_processor_id() in preemptible [00000000] code: fio/416
[ 20.267837] caller is brd_insert_page.part.0+0xbe/0x190 [brd]
[ 20.269436] Call Trace:
[ 20.269598] <TASK>
[ 20.269742] dump_stack_lvl+0x32/0x50
[ 20.269982] check_preemption_disabled+0xd1/0xe0
[ 20.270289] brd_insert_page.part.0+0xbe/0x190 [brd]
[ 20.270664] brd_submit_bio+0x33f/0xf40 [brd]
Use radix_tree_maybe_preload() which does preload only if
gfpflags_allow_blocking() is true but also takes the lock. Therefore,
unconditionally calling radix_tree_preload_end() should not create any
issues and the message disappears.
Fixes: 6ded703c56c2 ("brd: check for REQ_NOWAIT and set correct page allocation mask")
Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Link: https://lore.kernel.org/r/20230217121442.33914-1-p.raghav@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/sbitmap.c')
0 files changed, 0 insertions, 0 deletions