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    SubjectRe: Regression from 2.6.36
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    Andrew,

    which kernel versions will include this patch ? Thank you.

    azur



    ______________________________________________________________
    > Od: "Andrew Morton" <akpm@linux-foundation.org>
    > Komu: Eric Dumazet <eric.dumazet@gmail.com>,Changli Gao <xiaosuo@gmail.com>,Américo Wang <xiyou.wangcong@gmail.com>,Jiri Slaby <jslaby@suse.cz>, azurIt <azurit@pobox.sk>,linux-kernel@vger.kernel.org, linux-mm@kvack.org,linux-fsdevel@vger.kernel.org, Jiri Slaby <jirislaby@gmail.com>,Mel Gorman <mel@csn.ul.ie>
    > Dátum: 13.04.2011 23:26
    > Predmet: Re: Regression from 2.6.36
    >
    >On Wed, 13 Apr 2011 14:16:00 -0700
    >Andrew Morton <akpm@linux-foundation.org> wrote:
    >
    >> fs/file.c | 17 ++++++++++-------
    >> 1 file changed, 10 insertions(+), 7 deletions(-)
    >
    >bah, stupid compiler.
    >
    >
    >--- a/fs/file.c~vfs-avoid-large-kmallocs-for-the-fdtable
    >+++ a/fs/file.c
    >@@ -9,6 +9,7 @@
    > #include <linux/module.h>
    > #include <linux/fs.h>
    > #include <linux/mm.h>
    >+#include <linux/mmzone.h>
    > #include <linux/time.h>
    > #include <linux/sched.h>
    > #include <linux/slab.h>
    >@@ -39,14 +40,17 @@ int sysctl_nr_open_max = 1024 * 1024; /*
    > */
    > static DEFINE_PER_CPU(struct fdtable_defer, fdtable_defer_list);
    >
    >-static inline void *alloc_fdmem(unsigned int size)
    >+static void *alloc_fdmem(unsigned int size)
    > {
    >- void *data;
    >-
    >- data = kmalloc(size, GFP_KERNEL|__GFP_NOWARN);
    >- if (data != NULL)
    >- return data;
    >-
    >+ /*
    >+ * Very large allocations can stress page reclaim, so fall back to
    >+ * vmalloc() if the allocation size will be considered "large" by the VM.
    >+ */
    >+ if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) {
    >+ void *data = kmalloc(size, GFP_KERNEL|__GFP_NOWARN);
    >+ if (data != NULL)
    >+ return data;
    >+ }
    > return vmalloc(size);
    > }
    >
    >_
    >
    >--
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