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3ee2a19908
Save ~360 bytes. add/remove: 1/0 grow/shrink: 0/4 up/down: 104/-463 (-359) function old new delta name_to_int - 104 +104 proc_pid_lookup 217 126 -91 proc_lookupfd_common 212 121 -91 proc_task_lookup 289 194 -95 __proc_create 588 402 -186 Link: http://lkml.kernel.org/r/20170912194850.GA17730@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
24 lines
357 B
C
24 lines
357 B
C
#include <linux/dcache.h>
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unsigned name_to_int(const struct qstr *qstr)
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{
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const char *name = qstr->name;
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int len = qstr->len;
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unsigned n = 0;
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if (len > 1 && *name == '0')
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goto out;
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while (len-- > 0) {
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unsigned c = *name++ - '0';
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if (c > 9)
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goto out;
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if (n >= (~0U-9)/10)
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goto out;
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n *= 10;
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n += c;
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}
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return n;
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out:
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return ~0U;
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}
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