diff options
| author | Mark Brown <broonie@kernel.org> | 2014-11-03 15:13:33 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-11-03 15:13:33 +0000 |
| commit | ebc01f593b58e1896150fc2e3cbdd0116323c52c (patch) | |
| tree | 23e905a3fdbee3fc8a66ef760b9ed5ef5455e9dd /include/linux/fs.h | |
| parent | 3f7256fe5fc64132a2dd19695255c990aa2188cf (diff) | |
| parent | 0df1f2487d2f0d04703f142813d53615d62a1da4 (diff) | |
Merge tag 'v3.18-rc3' into asoc-sgtl5000
Linux 3.18-rc3
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 4e41a4a331bb..9ab779e8a63c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -639,11 +639,13 @@ static inline int inode_unhashed(struct inode *inode) * 2: child/target * 3: xattr * 4: second non-directory - * The last is for certain operations (such as rename) which lock two + * 5: second parent (when locking independent directories in rename) + * + * I_MUTEX_NONDIR2 is for certain operations (such as rename) which lock two * non-directories at once. * * The locking order between these classes is - * parent -> child -> normal -> xattr -> second non-directory + * parent[2] -> child -> grandchild -> normal -> xattr -> second non-directory */ enum inode_i_mutex_lock_class { @@ -651,7 +653,8 @@ enum inode_i_mutex_lock_class I_MUTEX_PARENT, I_MUTEX_CHILD, I_MUTEX_XATTR, - I_MUTEX_NONDIR2 + I_MUTEX_NONDIR2, + I_MUTEX_PARENT2, }; void lock_two_nondirectories(struct inode *, struct inode*); @@ -2466,6 +2469,7 @@ extern ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, lo extern ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos); /* fs/block_dev.c */ +extern ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to); extern ssize_t blkdev_write_iter(struct kiocb *iocb, struct iov_iter *from); extern int blkdev_fsync(struct file *filp, loff_t start, loff_t end, int datasync); |