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| author |   Gerald Schaefer <geraldsc@de.ibm.com> | 2008-04-30 13:38:46 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-04-30 13:38:47 +0200 |
| commit | 53492b1de46a7576170e865062ffcfc93bb5650b (patch) | |
| tree | bee94e5b2e8c19c1a094a25023cb82572707feb4 /fs | |
| parent | [S390] Convert machine feature detection code to C. (diff) | |
| download | linux-dev-53492b1de46a7576170e865062ffcfc93bb5650b.tar.xz linux-dev-53492b1de46a7576170e865062ffcfc93bb5650b.zip | |
[S390] System z large page support.
This adds hugetlbfs support on System z, using both hardware large page
support if available and software large page emulation on older hardware.
Shared (large) page tables are implemented in software emulation mode,
by using page->index of the first tail page from a compound large page
to store page table information.
Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/Kconfig | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/Kconfig b/fs/Kconfig index 2e43d46f65d6..cf12c403b8c7 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -1005,7 +1005,8 @@ config TMPFS_POSIX_ACL config HUGETLBFS bool "HugeTLB file system support" - depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || BROKEN + depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || \ + (S390 && 64BIT) || BROKEN help hugetlbfs is a filesystem backing for HugeTLB pages, based on ramfs. For architectures that support it, say Y here and read |