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shm: page align shm size when mmap()ing it

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This commit is contained in:
Lennart Poettering 2009-04-29 01:49:02 +02:00
parent 9745483cdd
commit 595c22a3ad
1 changed files with 3 additions and 3 deletions
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6
src/pulsecore/shm.c
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@ -105,7 +105,7 @@ int pa_shm_create_rw(pa_shm *m, size_t size, pa_bool_t shared, mode_t mode) {
m->size = size; m->size = size;
#ifdef MAP_ANONYMOUS #ifdef MAP_ANONYMOUS
if ((m->ptr = mmap(NULL, m->size, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, (off_t) 0)) == MAP_FAILED) { if ((m->ptr = mmap(NULL, PA_PAGE_ALIGN(m->size), PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, (off_t) 0)) == MAP_FAILED) {
pa_log("mmap() failed: %s", pa_cstrerror(errno)); pa_log("mmap() failed: %s", pa_cstrerror(errno));
goto fail; goto fail;
} }
@ -143,7 +143,7 @@ int pa_shm_create_rw(pa_shm *m, size_t size, pa_bool_t shared, mode_t mode) {
goto fail; goto fail;
} }
if ((m->ptr = mmap(NULL, m->size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, (off_t) 0)) == MAP_FAILED) { if ((m->ptr = mmap(NULL, PA_PAGE_ALIGN(m->size), PROT_READ|PROT_WRITE, MAP_SHARED, fd, (off_t) 0)) == MAP_FAILED) {
pa_log("mmap() failed: %s", pa_cstrerror(errno)); pa_log("mmap() failed: %s", pa_cstrerror(errno));
goto fail; goto fail;
} }
@ -291,7 +291,7 @@ int pa_shm_attach_ro(pa_shm *m, unsigned id) {
m->size = (size_t) st.st_size; m->size = (size_t) st.st_size;
if ((m->ptr = mmap(NULL, m->size, PROT_READ, MAP_SHARED, fd, (off_t) 0)) == MAP_FAILED) { if ((m->ptr = mmap(NULL, PA_PAGE_ALIGN(m->size), PROT_READ, MAP_SHARED, fd, (off_t) 0)) == MAP_FAILED) {
pa_log("mmap() failed: %s", pa_cstrerror(errno)); pa_log("mmap() failed: %s", pa_cstrerror(errno));
goto fail; goto fail;
} }