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    Contents of /trunk/kernel26-magellan/patches-2.6.16-r12/0034-2.6.16-mm-swap-prefetch-fix-lowmem-reserve-calc.patch

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    Revision 72 - (show annotations) (download)
    Mon Jun 5 09:25:38 2006 UTC (17 years, 11 months ago) by niro
    File size: 3555 byte(s) 
    ver bump to 2.6.16-r12:
- updated to linux-2.6.16.19
- updated to ck11
    1 From akpm@osdl.org Thu May 18 19:16:56 2006
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    17 Thu, 18 May 2006 02:16:55 -0700
    18 Message-Id: <200605180916.k4I9GtSc014558@shell0.pdx.osdl.net>
    19 Subject: + mm-swap-prefetch-fix-lowmem-reserve-calc.patch added to -mm tree
    20 To: kernel@kolivas.org,
    21 mm-commits@vger.kernel.org
    22 From: akpm@osdl.org
    23 Date: Thu, 18 May 2006 02:16:56 -0700
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    34 prefetch+static, 0.00010,
    35 if+free, 0.00010,
    36 deletion+diff, 0.00010,
    37 sched+add, 0.00010,
    38 sched+add, 0.00010,
    39 weighted+cpu, 0.00010,
    40 devel+mm, 0.00010,
    41 HIGHMEM, 0.00010,
    42 add+above, 0.00010,
    43 sched+store, 0.00010,
    44 prevent+high, 0.00010,
    45 shrinker, 0.00010,
    46 high+load, 0.00010,
    47 free+limits, 0.00010,
    48 free+limits, 0.00010,
    49 sched+batch, 0.00010,
    50 lowfree, 0.00010,
    51 lowfree, 0.00010,
    52 ns+highfree, 0.00010,
    53 ns+highfree, 0.00010,
    54 lowfree+idx, 0.00010,
    55 lowfree+idx, 0.00010,
    56 implement+smpnice, 0.00010,
    57 high+if, 0.00010,
    58 c31, 0.00010,
    59 suppressing, 0.00010,
    60 sched+prevent, 0.00010
    61 X-UID: 19445
    62 X-Length: 4199
    63 Status: RO
    64 X-Status: OC
    65 X-KMail-EncryptionState:
    66 X-KMail-SignatureState:
    67 X-KMail-MDN-Sent:
    68
    69
    70 The patch titled
    71
    72 swap prefetch fix lowmem reserve calc
    73
    74 has been added to the -mm tree. Its filename is
    75
    76 mm-swap-prefetch-fix-lowmem-reserve-calc.patch
    77
    78 See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
    79 out what to do about this
    80
    81 ------------------------------------------------------
    82 Subject: swap prefetch fix lowmem reserve calc
    83 From: Con Kolivas <kernel@kolivas.org>
    84
    85
    86 Correct the effect lowmem_reserve has on calculation of free limits in
    87 swap_prefetch.
    88
    89 Signed-off-by: Con Kolivas <kernel@kolivas.org>
    90 Signed-off-by: Andrew Morton <akpm@osdl.org>
    91 ---
    92
    93 mm/swap_prefetch.c | 3 ++-
    94 1 files changed, 2 insertions(+), 1 deletion(-)
    95
    96 Index: linux-2.6.16-ck11/mm/swap_prefetch.c
    97 ===================================================================
    98 --- linux-2.6.16-ck11.orig/mm/swap_prefetch.c 2006-05-21 12:24:07.000000000 +1000
    99 +++ linux-2.6.16-ck11/mm/swap_prefetch.c 2006-05-21 12:24:17.000000000 +1000
    100 @@ -287,7 +287,8 @@ static void examine_free_limits(void)
    101
    102 ns = &sp_stat.node[z->zone_pgdat->node_id];
    103 idx = zone_idx(z);
    104 - ns->lowfree[idx] = z->pages_high * 3 + z->lowmem_reserve[idx];
    105 + ns->lowfree[idx] = z->pages_high * 3 +
    106 + z->lowmem_reserve[ZONE_HIGHMEM];
    107 ns->highfree[idx] = ns->lowfree[idx] + z->pages_high;
    108
    109 if (z->free_pages > ns->highfree[idx]) {