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| author | Ingo Molnar <mingo@kernel.org> | 2017-03-01 11:25:55 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-03-01 11:25:55 +0300 |
| commit | 9dcfe2c75b51f454f39c2de4756e841228865b47 (patch) | |
| tree | 994ed0f8e86d8eeb6baec7a72b489fef5cd8f9be /fs/fs_pin.c | |
| parent | 2d6be4abf514fc26c83d239c7f31da1f95e4a31d (diff) | |
| download | linux-9dcfe2c75b51f454f39c2de4756e841228865b47.tar.xz | |
locking/refcounts: Change WARN() to WARN_ONCE()
Linus noticed that the new refcount.h APIs used WARN(), which would turn
into a dmesg DoS if it triggers frequently on some buggy driver.
So make sure we only warn once. These warnings are never supposed to happen,
so it's typically not a problem to lose subsequent warnings.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Elena Reshetova <elena.reshetova@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/CA+55aFzbYUTZ=oqZ2YgDjY0C2_n6ODhTfqj6V+m5xWmDxsuB0w@mail.gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/fs_pin.c')
0 files changed, 0 insertions, 0 deletions