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shm: explicitly mark shm seg for MAP_NORESERVE to request overcommiting no matter what

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Lennart Poettering 2010-02-02 08:51:44 +01:00
parent ea8927f1d4
commit f250179b4e
1 changed files with 5 additions and 1 deletions
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6
src/pulsecore/shm.c
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@ -154,7 +154,11 @@ int pa_shm_create_rw(pa_shm *m, size_t size, pa_bool_t shared, mode_t mode) {
goto fail;
}
if ((m->ptr = mmap(NULL, PA_PAGE_ALIGN(m->size), PROT_READ|PROT_WRITE, MAP_SHARED, fd, (off_t) 0)) == MAP_FAILED) {
#ifndef MAP_NORESERVE
#define MAP_NORESERVE 0
#endif
if ((m->ptr = mmap(NULL, PA_PAGE_ALIGN(m->size), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_NORESERVE, fd, (off_t) 0)) == MAP_FAILED) {
pa_log("mmap() failed: %s", pa_cstrerror(errno));
goto fail;
}