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Linux compat, umount2(2) flags 

Older glibc <sys/mount.h> headers did not define all the available
umount2(2) flags.  Both MNT_FORCE and MNT_DETACH are supported in the
kernel back to 2.4.11 so we define them correctly if they are missing.

Closes #95
This commit is contained in:
Brian Behlendorf 2011-03-21 16:54:59 -07:00
parent d6bd8eaae4
commit 1073d746d6
1 changed files with 17 additions and 2 deletions
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19
lib/libspl/include/sys/mount.h
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@ -55,7 +55,22 @@
#define MS_OWNER 0x10000000
#define MS_GROUP 0x08000000
#define MS_COMMENT 0x02000000
#define MS_FORCE MNT_FORCE
#define MS_DETACH MNT_DETACH
/*
* Older glibc <sys/mount.h> headers did not define all the available
* umount2(2) flags. Both MNT_FORCE and MNT_DETACH are supported in the
* kernel back to 2.4.11 so we define them correctly if they are missing.
*/
#ifdef MNT_FORCE
# define MS_FORCE MNT_FORCE
#else
# define MS_FORCE 0x00000001
#endif /* MNT_FORCE */
#ifdef MNT_DETACH
# define MS_DETACH MNT_DETACH
#else
# define MS_DETACH 0x00000002
#endif /* MNT_DETACH */
#endif /* _LIBSPL_SYS_MOUNT_H */