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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
kernel/relay.c
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@@ -1133,7 +1133,7 @@ static ssize_t relay_file_read_subbufs(struct file *filp, loff_t *ppos,
if (!desc->count)
return 0;
mutex_lock(&file_inode(filp)->i_mutex);
inode_lock(file_inode(filp));
do {
if (!relay_file_read_avail(buf, *ppos))
break;
@@ -1153,7 +1153,7 @@ static ssize_t relay_file_read_subbufs(struct file *filp, loff_t *ppos,
*ppos = relay_file_read_end_pos(buf, read_start, ret);
}
} while (desc->count && ret);
mutex_unlock(&file_inode(filp)->i_mutex);
inode_unlock(file_inode(filp));
return desc->written;
}