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author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2018-06-15 09:43:21 +1000 |
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committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2018-06-15 09:43:21 +1000 |
commit | 0c4d6e08c775136f3f14556be573c9573e918b5c (patch) | |
tree | 53b637d5f0c250fcdb065a905ad517f9ddbeeabc /mm | |
parent | 53b0d2c8459754340d4e9f23689ca909c10dbd3c (diff) |
lib/percpu_ida.c: don't do alloc from per-CPU list if there is none
In 804209d8a009 ("lib/percpu_ida.c: use _irqsave() instead of
local_irq_save() + spin_lock") I inlined alloc_local_tag() and mixed up
the >= check from percpu_ida_alloc() with the one in alloc_local_tag().
Don't alloc from per-CPU freelist if ->nr_free is zero.
Link: http://lkml.kernel.org/r/20180613075830.c3zeva52fuj6fxxv@linutronix.de
Fixes: 804209d8a009 ("lib/percpu_ida.c: use _irqsave() instead of local_irq_save() + spin_lock")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reported-by: David Disseldorp <ddiss@suse.de>
Tested-by: David Disseldorp <ddiss@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: Shaohua Li <shli@fb.com>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions