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| author | Randy Dunlap <randy.dunlap@oracle.com> | 2007-07-15 23:40:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:46 -0700 |
| commit | e73a75fa7f062b52d015f1c961685dcaac57f710 (patch) | |
| tree | de9c45f6a3c59651f8cea516f88cd1f7f8e31855 /Documentation/vm/hugetlbpage.txt | |
| parent | 5216184571946b8bbf06f0cd630c7754190fdd1a (diff) | |
| download | blackbird-op-linux-e73a75fa7f062b52d015f1c961685dcaac57f710.tar.gz blackbird-op-linux-e73a75fa7f062b52d015f1c961685dcaac57f710.zip | |
hugetlbfs: use lib/parser, fix docs
Use lib/parser.c to parse hugetlbfs mount options. Correct docs in
hugetlbpage.txt.
old size of hugetlbfs_fill_super: 675 bytes
new size of hugetlbfs_fill_super: 686 bytes
(hugetlbfs_parse_options() is inlined)
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Adam Litke <agl@us.ibm.com>
Acked-by: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/vm/hugetlbpage.txt')
| -rw-r--r-- | Documentation/vm/hugetlbpage.txt | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/vm/hugetlbpage.txt b/Documentation/vm/hugetlbpage.txt index 687104bfd09a..51ccc48aa763 100644 --- a/Documentation/vm/hugetlbpage.txt +++ b/Documentation/vm/hugetlbpage.txt @@ -77,8 +77,9 @@ If the user applications are going to request hugepages using mmap system call, then it is required that system administrator mount a file system of type hugetlbfs: - mount none /mnt/huge -t hugetlbfs <uid=value> <gid=value> <mode=value> - <size=value> <nr_inodes=value> + mount -t hugetlbfs \ + -o uid=<value>,gid=<value>,mode=<value>,size=<value>,nr_inodes=<value> \ + none /mnt/huge This command mounts a (pseudo) filesystem of type hugetlbfs on the directory /mnt/huge. Any files created on /mnt/huge uses hugepages. The uid and gid @@ -88,11 +89,10 @@ mode of root of file system to value & 0777. This value is given in octal. By default the value 0755 is picked. The size option sets the maximum value of memory (huge pages) allowed for that filesystem (/mnt/huge). The size is rounded down to HPAGE_SIZE. The option nr_inodes sets the maximum number of -inodes that /mnt/huge can use. If the size or nr_inodes options are not +inodes that /mnt/huge can use. If the size or nr_inodes option is not provided on command line then no limits are set. For size and nr_inodes options, you can use [G|g]/[M|m]/[K|k] to represent giga/mega/kilo. For -example, size=2K has the same meaning as size=2048. An example is given at -the end of this document. +example, size=2K has the same meaning as size=2048. read and write system calls are not supported on files that reside on hugetlb file systems. |
