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lib: Try harder to drop-caches

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If at first we don't succeed, try again. (For as long as the errno says
to at least!)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2014-09-12 11:09:41 +01:00
parent f81d8eba4f
commit 4779655c6f
1 changed files with 3 additions and 1 deletions
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4
lib/igt_debugfs.c
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@ -553,7 +553,9 @@ void igt_drop_caches_set(uint64_t val)
fd = igt_debugfs_open("i915_gem_drop_caches", O_WRONLY); fd = igt_debugfs_open("i915_gem_drop_caches", O_WRONLY);
igt_assert(fd >= 0); igt_assert(fd >= 0);
nbytes = write(fd, data, strlen(data) + 1); do {
nbytes = write(fd, data, strlen(data) + 1);
} while (nbytes == -1 && (errno == EINTR || errno == EAGAIN));
igt_assert(nbytes == strlen(data) + 1); igt_assert(nbytes == strlen(data) + 1);
close(fd); close(fd);
} }