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hugetlb: allow sticky directory mount option

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Allow sticky directory mount option for hugetlbfs.  This allows admin
to create a shared hugetlbfs mount point for multiple users, while
prevent accidental file deletion that users may step on each other.
It is similiar to default tmpfs mount option, or typical option used
on /tmp.

Signed-off-by: Ken Chen <[email protected]>
Cc: Badari Pulavarty <[email protected]>
Cc: Adam Litke <[email protected]>
Cc: David Gibson <[email protected]>
Cc: William Lee Irwin III <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Ken Chen 2008-02-04 22:28:36 -08:00 • committed by Linus Torvalds
commit 75897d60a5
1 changed files with 1 additions and 1 deletions
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2
fs/hugetlbfs/inode.c
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@ -768,7 +768,7 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
case Opt_mode:
if (match_octal(&args[0], &option))
goto bad_val;
pconfig->mode = option & 0777U;
pconfig->mode = option & 01777U;
break;
case Opt_size: {