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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2018-06-27 23:26:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-28 11:16:44 -0700
commit4bb6e96ab808f88d746343637f0cc2243b527da5 (patch)
tree11d34c2009b08348756232251106019756cf741e /mm
parentMerge tag 'xfs-4.18-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux (diff)
downloadlinux-dev-4bb6e96ab808f88d746343637f0cc2243b527da5.tar.xz
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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 'mm')
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