The patch titled Subject: generic-dynamic-per-cpu-refcounting-doc-fix has been removed from the -mm tree. Its filename was generic-dynamic-per-cpu-refcounting-doc-fix.patch This patch was dropped because it was folded into generic-dynamic-per-cpu-refcounting.patch ------------------------------------------------------ From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: generic-dynamic-per-cpu-refcounting-doc-fix a little tidy Cc: Kent Overstreet <koverstreet@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/percpu-refcount.h | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff -puN include/linux/percpu-refcount.h~generic-dynamic-per-cpu-refcounting-doc-fix include/linux/percpu-refcount.h --- a/include/linux/percpu-refcount.h~generic-dynamic-per-cpu-refcounting-doc-fix +++ a/include/linux/percpu-refcount.h @@ -21,19 +21,18 @@ * BACKGROUND: * * Percpu refcounts are quite useful for performance, but if we blindly - * converted all refcounts to percpu counters we'd waste quite a bit of memory - * think about all the refcounts embedded in kobjects, files, etc. most of which - * aren't used much. + * converted all refcounts to percpu counters we'd waste quite a bit of memory. * - * These start out as simple atomic counters - a little bigger than a bare - * atomic_t, 16 bytes instead of 4 - but if we exceed some arbitrary number of - * gets in one second, we then switch to percpu counters. + * Think about all the refcounts embedded in kobjects, files, etc. most of which + * aren't used much. These start out as simple atomic counters - a little bigger + * than a bare atomic_t, 16 bytes instead of 4 - but if we exceed some arbitrary + * number of gets in one second, we then switch to percpu counters. * * This heuristic isn't perfect because it'll fire if the refcount was only * being used on one cpu; ideally we'd be able to count the number of cache * misses on percpu_ref_get() or something similar, but that'd make the non * percpu path significantly heavier/more complex. We can count the number of - * gets() without any extra atomic instructions, on arches that support + * gets() without any extra atomic instructions on arches that support * atomic64_t - simply by changing the atomic_inc() to atomic_add_return(). * * USAGE: _ Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are linux-next.patch linux-next-git-rejects.patch arch-alpha-kernel-systblss-remove-debug-check.patch i-need-old-gcc.patch printk-provide-a-wake_up_klogd-off-case-fix.patch mm-hugetlb-fix-total-hugetlbfs-pages-count-when-memory-overcommit-accouting-fix.patch mips-define-kvm_user_mem_slots.patch timer_list-convert-timer-list-to-be-a-proper-seq_file.patch timer_list-convert-timer-list-to-be-a-proper-seq_file-v3-fix.patch loop-cleanup-partitions-when-detaching-loop-device-checkpatch-fixes.patch mm.patch mm-shmemc-remove-an-ifdef.patch xen-tmem-enable-xen-tmem-shim-to-be-built-loaded-as-a-module-fix.patch memcg-relax-memcg-iter-caching-checkpatch-fixes.patch mm-make-snapshotting-pages-for-stable-writes-a-per-bio-operation-fix.patch mm-make-snapshotting-pages-for-stable-writes-a-per-bio-operation-fix-fix.patch include-linux-mmzoneh-cleanups.patch include-linux-mmzoneh-cleanups-fix.patch drop_caches-add-some-documentation-and-info-messsge.patch memcg-debugging-facility-to-access-dangling-memcgs-fix.patch kernel-smpc-cleanups.patch early_printk-consolidate-random-copies-of-identical-code-v3-fix.patch include-linux-printkh-include-stdargh.patch get_maintainer-use-filename-only-regex-match-for-tegra-fix.patch epoll-trim-epitem-by-one-cache-line-on-x86_64-fix.patch binfmt_elfc-use-get_random_int-to-fix-entropy-depleting.patch rtc-ds1307-long-block-operations-bugfix.patch hfsplus-fix-warnings-in-fs-hfsplus-bfindc-in-function-hfs_find_1st_rec_by_cnid-fix.patch usermodehelper-export-_exec-and-_setup-functions-fix.patch kexec-use-min_t-to-simplify-logic-fix.patch kernel-pidc-improve-flow-of-a-loop-inside-alloc_pidmap-fix.patch pid_namespacec-h-simplify-defines-fix.patch drivers-net-rename-random32-to-prandom_u32-fix.patch aio-kiocb_cancel.patch wait-add-wait_event_hrtimeout.patch aio-use-cancellation-list-lazily.patch aio-give-shared-kioctx-fields-their-own-cachelines.patch generic-dynamic-per-cpu-refcounting.patch aio-dont-include-aioh-in-schedh-fix.patch aio-dont-include-aioh-in-schedh-fix-fix.patch aio-dont-include-aioh-in-schedh-fix-3.patch aio-dont-include-aioh-in-schedh-fix-3-fix.patch aio-dont-include-aioh-in-schedh-fix-3-fix-fix.patch aio-kill-ki_retry-fix.patch block-aio-batch-completion-for-bios-kiocbs-fix.patch block-aio-batch-completion-for-bios-kiocbs-fix-fix.patch block-aio-batch-completion-for-bios-kiocbs-fix-fix-fix.patch block-aio-batch-completion-for-bios-kiocbs-fix-fix-fix-fix-fix-fix.patch debugging-keep-track-of-page-owners-fix-2-fix.patch debugging-keep-track-of-page-owners-fix-2-fix-fix-fix.patch journal_add_journal_head-debug.patch kernel-forkc-export-kernel_thread-to-modules.patch mutex-subsystem-synchro-test-module.patch slab-leaks3-default-y.patch put_bh-debug.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html