diff options
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 5244400d5c23..6ee7252f51c0 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3070,6 +3070,13 @@ extern const struct iomap_ops btrfs_dio_iomap_ops; extern const struct iomap_dio_ops btrfs_dio_ops; extern const struct iomap_dio_ops btrfs_sync_dops; +/* Inode locking type flags, by default the exclusive lock is taken */ +#define BTRFS_ILOCK_SHARED (1U << 0) +#define BTRFS_ILOCK_TRY (1U << 1) + +int btrfs_inode_lock(struct inode *inode, unsigned int ilock_flags); +void btrfs_inode_unlock(struct inode *inode, unsigned int ilock_flags); + /* ioctl.c */ long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg); long btrfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); |