diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2018-06-28 09:26:01 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-28 21:16:44 +0300 |
| commit | 4bb6e96ab808f88d746343637f0cc2243b527da5 (patch) | |
| tree | 11d34c2009b08348756232251106019756cf741e /lib/iov_iter.c | |
| parent | f57494321cbf5b1e7769b6135407d2995a369e28 (diff) | |
| download | linux-4bb6e96ab808f88d746343637f0cc2243b527da5.tar.xz | |
lib/percpu_ida.c: don't do alloc from per-CPU list if there is none
In commit 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: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/iov_iter.c')
0 files changed, 0 insertions, 0 deletions