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Diffstat (limited to 'drivers/staging/cowloop/cowloop.h')
-rw-r--r--drivers/staging/cowloop/cowloop.h66
1 files changed, 0 insertions, 66 deletions
diff --git a/drivers/staging/cowloop/cowloop.h b/drivers/staging/cowloop/cowloop.h
deleted file mode 100644
index bbd4a35ac667..000000000000
--- a/drivers/staging/cowloop/cowloop.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
-** DO NOT MODIFY THESE VALUES (would make old cowfiles unusable)
-*/
-#define MAPUNIT 1024 /* blocksize for bit in bitmap */
-#define MUSHIFT 10 /* bitshift for bit in bitmap */
-#define MUMASK 0x3ff /* bitmask for bit in bitmap */
-
-#define COWMAGIC 0x574f437f /* byte-swapped '7f C O W' */
-#define COWDIRTY 0x01
-#define COWPACKED 0x02
-#define COWVERSION 1
-
-struct cowhead
-{
- int magic; /* identifies a cowfile */
- short version; /* version of cowhead */
- short flags; /* flags indicating status */
- unsigned long mapunit; /* blocksize per bit in bitmap */
- unsigned long mapsize; /* total size of bitmap (bytes) */
- unsigned long doffset; /* start-offset datablocks in cow */
- unsigned long rdoblocks; /* size of related read-only file */
- unsigned long rdofingerprint; /* fingerprint of read-only file */
- unsigned long cowused; /* number of datablocks used in cow */
-};
-
-#define COWDEVDIR "/dev/cow/"
-#define COWDEVICE COWDEVDIR "%ld"
-#define COWCONTROL COWDEVDIR "ctl"
-
-#define MAXCOWS 1024
-#define COWCTL (MAXCOWS-1) /* minor number of /dev/cow/ctl */
-
-#define COWPROCDIR "/proc/cow/"
-#define COWPROCFILE COWPROCDIR "%d"
-
-/*
-** ioctl related stuff
-*/
-#define ANYDEV ((unsigned long)-1)
-
-struct cowpair
-{
- unsigned char *rdofile; /* pathname of the rdofile */
- unsigned char *cowfile; /* pathname of the cowfile */
- unsigned short rdoflen; /* length of rdofile pathname */
- unsigned short cowflen; /* length of cowfile pathname */
- unsigned long device; /* requested/returned device number */
-};
-
-struct cowwatch
-{
- int flags; /* request flags */
- unsigned long device; /* requested device number */
- unsigned long threshold; /* continue if free Kb < threshold */
- unsigned long totalkb; /* ret: total filesystem size (Kb) */
- unsigned long availkb; /* ret: free filesystem size (Kb) */
-};
-
-#define WATCHWAIT 0x01 /* block until threshold reached */
-
-#define COWSYNC _IO ('C', 1)
-#define COWMKPAIR _IOW ('C', 2, struct cowpair)
-#define COWRMPAIR _IOW ('C', 3, unsigned long)
-#define COWWATCH _IOW ('C', 4, struct cowwatch)
-#define COWCLOSE _IOW ('C', 5, unsigned long)
-#define COWRDOPEN _IOW ('C', 6, unsigned long)