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authorRalf Baechle <ralf@linux-mips.org>2000-11-23 02:00:47 +0000
committerRalf Baechle <ralf@linux-mips.org>2000-11-23 02:00:47 +0000
commit06615f62b17d7de6e12d2f5ec6b88cf30af08413 (patch)
tree8766f208847d4876a6db619aebbf54d53b76eb44 /Documentation/cachetlb.txt
parentfa9bdb574f4febb751848a685d9a9017e04e1d53 (diff)
Merge with Linux 2.4.0-test10.
Diffstat (limited to 'Documentation/cachetlb.txt')
-rw-r--r--Documentation/cachetlb.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt
index 3d003463d..952dbc652 100644
--- a/Documentation/cachetlb.txt
+++ b/Documentation/cachetlb.txt
@@ -284,6 +284,12 @@ Here is the new interface:
user space shared/writable mappings of this page potentially
exist, this routine is called.
+ NOTE: This routine need only be called for page cache pages
+ which can potentially ever be mapped into the address
+ space of a user process. So for example, VFS layer code
+ handling vfs symlinks in the page cache need not call
+ this interface at all.
+
The phrase "kernel writes to a page cache page" means,
specifically, that the kernel executes store instructions
that dirty data in that page at the page->virtual mapping