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wrappers for ->i_mutex access

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parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2016-01-22 15:40:57 -05:00
parent 57b8f112cf
commit 5955102c99
177 changed files with 908 additions and 883 deletions
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4
fs/btrfs/inode.c
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@@ -8447,7 +8447,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
* not unlock the i_mutex at this case.
*/
if (offset + count <= inode->i_size) {
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
relock = true;
}
ret = btrfs_delalloc_reserve_space(inode, offset, count);
@@ -8504,7 +8504,7 @@ out:
if (wakeup)
inode_dio_end(inode);
if (relock)
mutex_lock(&inode->i_mutex);
inode_lock(inode);
return ret;
}