Documentation/mm/page_tables.rst | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
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's"
- Fixing "instruction that want" to "instruction that wants"
- Fixing "code path" to "code paths"
Signed-off-by: Min-Hsun Chang <chmh0624@gmail.com>
---
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..126c87628250 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's 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.
--
2.50.1
On Mon, Feb 9, 2026 at 3:56 PM Min-Hsun Chang <chmh0624@gmail.com> wrote: > 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's" > - Fixing "instruction that want" to "instruction that wants" > - Fixing "code path" to "code paths" > > Signed-off-by: Min-Hsun Chang <chmh0624@gmail.com> Reviewed-by: Linus Walleij <linusw@kernel.org> Yours, Linus Walleij
On Mon, Feb 09, 2026 at 10:56:03PM +0800, Min-Hsun Chang wrote: > 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's" > - Fixing "instruction that want" to "instruction that wants" > - Fixing "code path" to "code paths" It'd be polite to cc the original author. Added. (also see one question below) Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> > Signed-off-by: Min-Hsun Chang <chmh0624@gmail.com> > --- > 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..126c87628250 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's first computer had 4MB of physical memory. Entries in > +this single table were referred to as *PTEs* - page table entries. I'm unsure about this change of "*PTE*:s" to "*PTEs*". Is that special rst syntax to keep PTE highlighted without highlighting the 's'? > 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. > -- > 2.50.1 > >
Matthew Wilcox <willy@infradead.org> writes: >> -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's first computer had 4MB of physical memory. Entries in >> +this single table were referred to as *PTEs* - page table entries. > > I'm unsure about this change of "*PTE*:s" to "*PTEs*". Is that special > rst syntax to keep PTE highlighted without highlighting the 's'? No, it was just a typo - look how the current version is rendered on https://docs.kernel.org/mm/page_tables.html. Thanks, jon
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