project-base/server-skynet-source-3rd-jemalloc
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Fix dss/mmap allocation precedence code.

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Fix dss/mmap allocation precedence code to use recyclable mmap memory
only after primary dss allocation fails.
This commit is contained in:
Jason Evans 2012-10-16 22:06:56 -07:00
parent 2b592b0f0b
commit 12efefb195
2 changed files with 20 additions and 26 deletions
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6
ChangeLog
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@ -6,6 +6,12 @@ found in the git revision history:
http://www.canonware.com/cgi-bin/gitweb.cgi?p=jemalloc.git
git://canonware.com/jemalloc.git
* 3.x.x (XXX Not released)
Bug fixes:
- Fix dss/mmap allocation precedence code to use recyclable mmap memory only
after primary dss allocation fails.
* 3.1.0 (October 16, 2012)
New features:

36
src/chunk.c
View File

@ -146,40 +146,28 @@ chunk_alloc(size_t size, size_t alignment, bool base, bool *zero,
assert(alignment != 0);
assert((alignment & chunksize_mask) == 0);
/*
* Try to recycle an existing mapping.
*/
/* "primary" dss. */
if (config_dss && dss_prec == dss_prec_primary && (ret =
chunk_recycle(&chunks_szad_dss, &chunks_ad_dss, size, alignment,
base, zero)) != NULL)
if (config_dss && dss_prec == dss_prec_primary) {
if ((ret = chunk_recycle(&chunks_szad_dss, &chunks_ad_dss, size,
alignment, base, zero)) != NULL)
goto label_return;
if ((ret = chunk_alloc_dss(size, alignment, zero)) != NULL)
goto label_return;
}
/* mmap. */
if ((ret = chunk_recycle(&chunks_szad_mmap, &chunks_ad_mmap, size,
alignment, base, zero)) != NULL)
goto label_return;
/* "secondary" dss. */
if (config_dss && dss_prec == dss_prec_secondary && (ret =
chunk_recycle(&chunks_szad_dss, &chunks_ad_dss, size, alignment,
base, zero)) != NULL)
goto label_return;
/*
* Try to allocate a new mapping.
*/
/* "primary" dss. */
if (config_dss && dss_prec == dss_prec_primary && (ret =
chunk_alloc_dss(size, alignment, zero)) != NULL)
goto label_return;
/* mmap. */
if ((ret = chunk_alloc_mmap(size, alignment, zero)) != NULL)
goto label_return;
/* "secondary" dss. */
if (config_dss && dss_prec == dss_prec_secondary && (ret =
chunk_alloc_dss(size, alignment, zero)) != NULL)
if (config_dss && dss_prec == dss_prec_secondary) {
if ((ret = chunk_recycle(&chunks_szad_dss, &chunks_ad_dss, size,
alignment, base, zero)) != NULL)
goto label_return;
if ((ret = chunk_alloc_dss(size, alignment, zero)) != NULL)
goto label_return;
}
/* All strategies for allocation failed. */
ret = NULL;