Revision e523a29c4f2703bdb98f68ce1bb256e259fd8d5f authored by Stefan Bühler on 19 April 2019, 09:57:44 UTC, committed by Jens Axboe on 22 April 2019, 17:00:55 UTC
A read memory barrier is required between reading SQ tail and reading the actual data belonging to the SQ entry. Userspace needs a matching write barrier between writing SQ entries and updating SQ tail (using smp_store_release to update tail will do). Signed-off-by: Stefan Bühler <source@stbuehler.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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LICENSES | ||
arch | ||
block | ||
certs | ||
crypto | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | -rw-r--r-- | 14.6 KB |
.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 31 bytes |
.gitattributes | -rw-r--r-- | 30 bytes |
.gitignore | -rw-r--r-- | 1.5 KB |
.mailmap | -rw-r--r-- | 11.0 KB |
COPYING | -rw-r--r-- | 423 bytes |
CREDITS | -rw-r--r-- | 96.9 KB |
Kbuild | -rw-r--r-- | 1.5 KB |
Kconfig | -rw-r--r-- | 563 bytes |
MAINTAINERS | -rw-r--r-- | 491.4 KB |
Makefile | -rw-r--r-- | 58.3 KB |
README | -rw-r--r-- | 727 bytes |
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