[PATCH] Docs/mm: fix typos and grammar in page_tables.rst
From: Min-Hsun Chang <hidden>
Date: 2026-02-09 08:13:30
Also in:
linux-mm, lkml
Subsystem:
documentation, memory management - misc, the rest · Maintainers:
Jonathan Corbet, Andrew Morton, David Hildenbrand, Linus Torvalds
Correct several spelling and grammatical errors in the page tables documentation. This includes: - Fixing "a address" to "an address" - Fixing "pfs" to "pfns" - Correcting the possessive "Torvald's" to "Torvalds'" - Fixing "instruction that want" to "instruction that wants" - Fixing "code path" to "code paths" Signed-off-by: Min-Hsun Chang <redacted> --- Documentation/mm/page_tables.rst | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/Documentation/mm/page_tables.rst b/Documentation/mm/page_tables.rst
index e7c69cc32493..d5a2c37b05e4 100644
--- a/Documentation/mm/page_tables.rst
+++ b/Documentation/mm/page_tables.rst@@ -26,9 +26,9 @@ Physical memory address 0 will be *pfn 0* and the highest pfn will be the last page of physical memory the external address bus of the CPU can address. -With a page granularity of 4KB and a address range of 32 bits, pfn 0 is at +With a page granularity of 4KB and an address range of 32 bits, pfn 0 is at address 0x00000000, pfn 1 is at address 0x00001000, pfn 2 is at 0x00002000 -and so on until we reach pfn 0xfffff at 0xfffff000. With 16KB pages pfs are +and so on until we reach pfn 0xfffff at 0xfffff000. With 16KB pages pfns are at 0x00004000, 0x00008000 ... 0xffffc000 and pfn goes from 0 to 0x3ffff. As you can see, with 4KB pages the page base address uses bits 12-31 of the
@@ -38,8 +38,8 @@ address, and this is why `PAGE_SHIFT` in this case is defined as 12 and Over time a deeper hierarchy has been developed in response to increasing memory sizes. When Linux was created, 4KB pages and a single page table called `swapper_pg_dir` with 1024 entries was used, covering 4MB which coincided with -the fact that Torvald's first computer had 4MB of physical memory. Entries in -this single table were referred to as *PTE*:s - page table entries. +the fact that Torvalds' first computer had 4MB of physical memory. Entries in +this single table were referred to as *PTEs* - page table entries. The software page table hierarchy reflects the fact that page table hardware has become hierarchical and that in turn is done to save page table memory and
@@ -212,7 +212,7 @@ threshold. Additionally, page faults may be also caused by code bugs or by maliciously crafted addresses that the CPU is instructed to access. A thread of a process could use instructions to address (non-shared) memory which does not belong to -its own address space, or could try to execute an instruction that want to write +its own address space, or could try to execute an instruction that wants to write to a read-only location. If the above-mentioned conditions happen in user-space, the kernel sends a
@@ -277,5 +277,5 @@ To conclude this high altitude view of how Linux handles page faults, let's add that the page faults handler can be disabled and enabled respectively with `pagefault_disable()` and `pagefault_enable()`. -Several code path make use of the latter two functions because they need to +Several code paths make use of the latter two functions because they need to disable traps into the page faults handler, mostly to prevent deadlocks.
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2.50.1