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Fit locking bits into 1 byte.

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This commit is contained in:
Alasdair Kergon 2003-11-06 17:08:18 +00:00
parent 2de96f501a
commit 3eb135f550
1 changed files with 6 additions and 6 deletions
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12
lib/locking/locking.h
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@ -33,7 +33,7 @@ int check_lvm1_vg_inactive(struct cmd_context *cmd, const char *vgname);
/* /*
* Lock type - these numbers are the same as VMS and the IBM DLM * Lock type - these numbers are the same as VMS and the IBM DLM
*/ */
#define LCK_TYPE_MASK 0x000000FF #define LCK_TYPE_MASK 0x00000007
#define LCK_NULL 0x00000000 /* LCK$_NLMODE */ #define LCK_NULL 0x00000000 /* LCK$_NLMODE */
#define LCK_READ 0x00000001 /* LCK$_CRMODE */ #define LCK_READ 0x00000001 /* LCK$_CRMODE */
@ -41,20 +41,20 @@ int check_lvm1_vg_inactive(struct cmd_context *cmd, const char *vgname);
/* LCK$_PRMODE */ /* LCK$_PRMODE */
#define LCK_WRITE 0x00000004 /* LCK$_PWMODE */ #define LCK_WRITE 0x00000004 /* LCK$_PWMODE */
#define LCK_EXCL 0x00000005 /* LCK$_EXMODE */ #define LCK_EXCL 0x00000005 /* LCK$_EXMODE */
#define LCK_UNLOCK 0x00000010 /* This is ours */ #define LCK_UNLOCK 0x00000006 /* This is ours */
/* /*
* Lock scope * Lock scope
*/ */
#define LCK_SCOPE_MASK 0x0000FF00 #define LCK_SCOPE_MASK 0x00000008
#define LCK_VG 0x00000000 #define LCK_VG 0x00000000
#define LCK_LV 0x00000100 #define LCK_LV 0x00000008
/* /*
* Lock bits * Lock bits
*/ */
#define LCK_NONBLOCK 0x00010000 /* Don't block waiting for lock? */ #define LCK_NONBLOCK 0x00000010 /* Don't block waiting for lock? */
#define LCK_HOLD 0x00020000 /* Hold lock when lock_vol returns? */ #define LCK_HOLD 0x00000020 /* Hold lock when lock_vol returns? */
/* /*
* Common combinations * Common combinations