F_INPROGRESS isn't exposed to userspace. To me it makes more sense in
fl_flags....
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
---
arch/alpha/include/asm/fcntl.h | 2 --
fs/locks.c | 14 ++++++++------
include/asm-generic/fcntl.h | 5 -----
include/linux/fs.h | 3 ++-
4 files changed, 10 insertions(+), 14 deletions(-)
diff --git a/arch/alpha/include/asm/fcntl.h b/arch/alpha/include/asm/fcntl.h
index 1b71ca7..6d9e805 100644
--- a/arch/alpha/include/asm/fcntl.h
+++ b/arch/alpha/include/asm/fcntl.h
@@ -51,8 +51,6 @@
#define F_EXLCK 16 /* or 3 */
#define F_SHLCK 32 /* or 4 */
-#define F_INPROGRESS 64
-
#include <asm-generic/fcntl.h>
#endif
diff --git a/fs/locks.c b/fs/locks.c
index c528522..c421541 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -135,7 +135,7 @@
static bool lease_breaking(struct file_lock *fl)
{
- return fl->fl_type & F_INPROGRESS;
+ return fl->fl_flags & FL_INPROGRESS;
}
int leases_enable = 1;
@@ -1132,6 +1132,7 @@ int lease_modify(struct file_lock **before, int arg)
if (error)
return error;
+ fl->fl_flags &= ~FL_INPROGRESS;
locks_wake_up_blocks(fl);
if (arg == F_UNLCK)
locks_delete_lock(before);
@@ -1152,7 +1153,7 @@ static void time_out_leases(struct inode *inode)
before = &fl->fl_next;
continue;
}
- lease_modify(before, fl->fl_type & ~F_INPROGRESS);
+ lease_modify(before, fl->fl_type);
if (fl == *before) /* lease_modify may have freed fl */
before = &fl->fl_next;
}
@@ -1193,13 +1194,13 @@ int __break_lease(struct inode *inode, unsigned int mode)
if (want_write) {
/* If we want write access, we have to revoke any lease. */
- future = F_UNLCK | F_INPROGRESS;
+ future = F_UNLCK;
} else if (lease_breaking(flock)) {
/* If the lease is already being broken, we just leave it */
future = flock->fl_type;
} else if (flock->fl_type & F_WRLCK) {
/* Downgrade the exclusive lease to a read-only lease. */
- future = F_RDLCK | F_INPROGRESS;
+ future = F_RDLCK;
} else {
/* the existing lease was read-only, so we can read too. */
goto out;
@@ -1221,6 +1222,7 @@ int __break_lease(struct inode *inode, unsigned int mode)
for (fl = flock; fl && IS_LEASE(fl); fl = fl->fl_next) {
if (fl->fl_type != future) {
fl->fl_type = future;
+ fl->fl_flags |= FL_INPROGRESS;
fl->fl_break_time = break_time;
/* lease must have lmops break callback */
fl->fl_lmops->lm_break(fl);
@@ -1319,7 +1321,7 @@ int fcntl_getlease(struct file *filp)
for (fl = filp->f_path.dentry->d_inode->i_flock; fl && IS_LEASE(fl);
fl = fl->fl_next) {
if (fl->fl_file == filp) {
- type = fl->fl_type & ~F_INPROGRESS;
+ type = fl->fl_type;
break;
}
}
@@ -1384,7 +1386,7 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
before = &fl->fl_next) {
if (fl->fl_file == filp)
my_before = before;
- else if (fl->fl_type == (F_INPROGRESS | F_UNLCK))
+ else if ((fl->fl_type == F_UNLCK) && lease_breaking(fl))
/*
* Someone is in the process of opening this
* file for writing so we may not take an
diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h
index 84793c7..9e5b035 100644
--- a/include/asm-generic/fcntl.h
+++ b/include/asm-generic/fcntl.h
@@ -145,11 +145,6 @@ struct f_owner_ex {
#define F_SHLCK 8 /* or 4 */
#endif
-/* for leases */
-#ifndef F_INPROGRESS
-#define F_INPROGRESS 16
-#endif
-
/* operations for bsd flock(), also used by the kernel implementation */
#define LOCK_SH 1 /* shared lock */
#define LOCK_EX 2 /* exclusive lock */
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 178cdb4..327fdd4 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1065,6 +1065,7 @@ static inline int file_check_writeable(struct file *filp)
#define FL_LEASE 32 /* lease held on this file */
#define FL_CLOSE 64 /* unlock on close */
#define FL_SLEEP 128 /* A blocking lock */
+#define FL_INPROGRESS 256 /* Lease is being broken */
/*
* Special return value from posix_lock_file() and vfs_lock_file() for
@@ -1111,7 +1112,7 @@ struct file_lock {
struct list_head fl_link; /* doubly linked list of all locks */
struct list_head fl_block; /* circular list of blocked processes */
fl_owner_t fl_owner;
- unsigned char fl_flags;
+ unsigned int fl_flags;
unsigned char fl_type;
unsigned int fl_pid;
struct pid *fl_nspid;
--
1.7.4.1
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