#include #include #include #include #include "ioexact.h" extern volatile sig_atomic_t sigint; ssize_t read_exact(int fd, void *buf, size_t len, bool mayexit) { ssize_t num = 0, written; while (len > 0 && !sigint) { if ((written = read(fd, buf, len)) < 0) { if (errno == EAGAIN && num > 0) continue; if (mayexit) return -1; else continue; } if (!written) return 0; len -= written; buf += written; num += written; } return num; } ssize_t write_exact(int fd, void *buf, size_t len, bool mayexit) { ssize_t num = 0, written; while (len > 0 && !sigint) { if ((written = write(fd, buf, len)) < 0) { if (errno == EAGAIN && num > 0) continue; if (mayexit) return -1; else continue; } if (!written) return 0; len -= written; buf += written; num += written; } return num; } d' value='07a7056ccce3ffdb65908bf502aeb2503714da46'/> net-next plumbingsTobias Klauser

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author	Russell King <rmk+kernel@arm.linux.org.uk>	2016-03-15 15:00:30 +0000
committer	Russell King <rmk+kernel@arm.linux.org.uk>	2016-05-03 11:17:28 +0100
commit	07a7056ccce3ffdb65908bf502aeb2503714da46 (patch)
tree	b279010101294be5e39e682771dd118c6276b23f
parent	d0506a2395eb07bef248de95016d9a8cf8a465ea (diff)

ARM: provide arm_has_idmap_alias() helper

Provide a helper to indicate whether we need to perform special handling for boot identity mapping aliases or not. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Reviewed-by: Pratyush Anand <panand@redhat.com>