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| author |   Jeff Layton <jlayton@primarydata.com> | 2014-09-01 07:12:07 -0400 |
|---|---|---|
| committer | Jeff Layton <jlayton@primarydata.com> | 2014-10-07 14:06:13 -0400 |
| commit | c45198eda2794bb72601c9f96266d8b95db66dd5 (patch) | |
| tree | 59c973d0d5356e113efd22ece677267cbc07e0af /include/linux/fs.h | |
| parent | locks: move i_lock acquisition into generic_*_lease handlers (diff) | |
| download | linux-dev-c45198eda2794bb72601c9f96266d8b95db66dd5.tar.xz linux-dev-c45198eda2794bb72601c9f96266d8b95db66dd5.zip | |
locks: move freeing of leases outside of i_lock
There was only one place where we still could free a file_lock while
holding the i_lock -- lease_modify. Add a new list_head argument to the
lm_change operation, pass in a private list when calling it, and fix
those callers to dispose of the list once the lock has been dropped.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 9a6d56154dd5..f419f718e447 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -873,7 +873,7 @@ struct lock_manager_operations { void (*lm_notify)(struct file_lock *); /* unblock callback */ int (*lm_grant)(struct file_lock *, int); void (*lm_break)(struct file_lock *); - int (*lm_change)(struct file_lock **, int); + int (*lm_change)(struct file_lock **, int, struct list_head *); void (*lm_setup)(struct file_lock *, void **); }; @@ -985,7 +985,7 @@ extern int __break_lease(struct inode *inode, unsigned int flags, unsigned int t extern void lease_get_mtime(struct inode *, struct timespec *time); extern int generic_setlease(struct file *, long, struct file_lock **, void **priv); extern int vfs_setlease(struct file *, long, struct file_lock **, void **); -extern int lease_modify(struct file_lock **, int); +extern int lease_modify(struct file_lock **, int, struct list_head *); #else /* !CONFIG_FILE_LOCKING */ static inline int fcntl_getlk(struct file *file, unsigned int cmd, struct flock __user *user) @@ -1112,7 +1112,8 @@ static inline int vfs_setlease(struct file *filp, long arg, return -EINVAL; } -static inline int lease_modify(struct file_lock **before, int arg) +static inline int lease_modify(struct file_lock **before, int arg, + struct list_head *dispose) { return -EINVAL; } |