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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
synced 2026-11-02 19:05:42 +00:00
ad449d856b
Update the way arch_[enter|leave]_lazy_mmu_mode() is called in pagemap_scan_pmd_entry() to follow the normal pattern of holding the ptl for user space mappings. As a result the scope is reduced to only the pte table, but that's where most of the performance win is. While I believe there wasn't technically a bug here, the original scope made it easier to accidentally nest or, worse, accidentally call something like kmap() which would expect an immediate mode pte modification but it would end up deferred. Link: https://lkml.kernel.org/r/20250303141542.3371656-3-ryan.roberts@arm.com Signed-off-by: Ryan Roberts <ryan.roberts@arm.com> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Juergen Gross <jgross@suse.com> Cc: Andreas Larsson <andreas@gaisler.com> Cc: Borislav Betkov <bp@alien8.de> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juegren Gross <jgross@suse.com> Cc: Matthew Wilcow (Oracle) <willy@infradead.org> Cc: Thomas Gleinxer <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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| .. | ||
| array.c | ||
| base.c | ||
| bootconfig.c | ||
| cmdline.c | ||
| consoles.c | ||
| cpuinfo.c | ||
| devices.c | ||
| fd.c | ||
| fd.h | ||
| generic.c | ||
| inode.c | ||
| internal.h | ||
| interrupts.c | ||
| Kconfig | ||
| kcore.c | ||
| kmsg.c | ||
| loadavg.c | ||
| Makefile | ||
| meminfo.c | ||
| namespaces.c | ||
| nommu.c | ||
| page.c | ||
| proc_net.c | ||
| proc_sysctl.c | ||
| proc_tty.c | ||
| root.c | ||
| self.c | ||
| softirqs.c | ||
| stat.c | ||
| task_mmu.c | ||
| task_nommu.c | ||
| thread_self.c | ||
| uptime.c | ||
| util.c | ||
| version.c | ||
| vmcore.c | ||