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File locking related fix for v4.0 (#5)

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Merge tag 'locks-v4.0-5' of git://git.samba.org/jlayton/linux

Pull file locking fix from Jeff Layton:
 "Another small fix for the lease overhaul"

* tag 'locks-v4.0-5' of git://git.samba.org/jlayton/linux:
  locks: fix file_lock deletion inside loop
This commit is contained in:
Linus Torvalds 2015-03-30 15:13:04 -07:00
commit 6c310bc1ac
1 changed files with 2 additions and 3 deletions
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5
fs/locks.c
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@ -1388,9 +1388,8 @@ any_leases_conflict(struct inode *inode, struct file_lock *breaker)
int __break_lease(struct inode *inode, unsigned int mode, unsigned int type)
{
int error = 0;
struct file_lock *new_fl;
struct file_lock_context *ctx = inode->i_flctx;
struct file_lock *fl;
struct file_lock *new_fl, *fl, *tmp;
unsigned long break_time;
int want_write = (mode & O_ACCMODE) != O_RDONLY;
LIST_HEAD(dispose);
@ -1420,7 +1419,7 @@ int __break_lease(struct inode *inode, unsigned int mode, unsigned int type)
break_time++; /* so that 0 means no break time */
}
list_for_each_entry(fl, &ctx->flc_lease, fl_list) {
list_for_each_entry_safe(fl, tmp, &ctx->flc_lease, fl_list) {
if (!leases_conflict(fl, new_fl))
continue;
if (want_write) {