aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorRandy Dunlap <randy.dunlap@oracle.com>2007-07-16 02:40:52 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 12:05:46 -0400
commite73a75fa7f062b52d015f1c961685dcaac57f710 (patch)
treede9c45f6a3c59651f8cea516f88cd1f7f8e31855 /Documentation
parent5216184571946b8bbf06f0cd630c7754190fdd1a (diff)
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')
-rw-r--r--Documentation/vm/hugetlbpage.txt10
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
77call, then it is required that system administrator mount a file system of 77call, then it is required that system administrator mount a file system of
78type hugetlbfs: 78type hugetlbfs:
79 79
80 mount none /mnt/huge -t hugetlbfs <uid=value> <gid=value> <mode=value> 80 mount -t hugetlbfs \
81 <size=value> <nr_inodes=value> 81 -o uid=<value>,gid=<value>,mode=<value>,size=<value>,nr_inodes=<value> \
82 none /mnt/huge
82 83
83This command mounts a (pseudo) filesystem of type hugetlbfs on the directory 84This command mounts a (pseudo) filesystem of type hugetlbfs on the directory
84/mnt/huge. Any files created on /mnt/huge uses hugepages. The uid and gid 85/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.
88By default the value 0755 is picked. The size option sets the maximum value of 89By default the value 0755 is picked. The size option sets the maximum value of
89memory (huge pages) allowed for that filesystem (/mnt/huge). The size is 90memory (huge pages) allowed for that filesystem (/mnt/huge). The size is
90rounded down to HPAGE_SIZE. The option nr_inodes sets the maximum number of 91rounded down to HPAGE_SIZE. The option nr_inodes sets the maximum number of
91inodes that /mnt/huge can use. If the size or nr_inodes options are not 92inodes that /mnt/huge can use. If the size or nr_inodes option is not
92provided on command line then no limits are set. For size and nr_inodes 93provided on command line then no limits are set. For size and nr_inodes
93options, you can use [G|g]/[M|m]/[K|k] to represent giga/mega/kilo. For 94options, you can use [G|g]/[M|m]/[K|k] to represent giga/mega/kilo. For
94example, size=2K has the same meaning as size=2048. An example is given at 95example, size=2K has the same meaning as size=2048.
95the end of this document.
96 96
97read and write system calls are not supported on files that reside on hugetlb 97read and write system calls are not supported on files that reside on hugetlb
98file systems. 98file systems.