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Commit 31370f62 authored by Frederic Weisbecker's avatar Frederic Weisbecker
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reiserfs: Relax reiserfs_xattr_set_handle() while acquiring xattr locks 



Fix remaining xattr locks acquired in reiserfs_xattr_set_handle()
while we are holding the reiserfs lock to avoid lock inversions.

Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
Cc: Christian Kujau <lists@nerdbynature.de>
Cc: Alexander Beregalov <a.beregalov@gmail.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
parent e0baec1b

fs/reiserfs/xattr.c

+4 −0
Original line number Diff line number Diff line
@@ -559,8 +559,12 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th, 
			.ia_size = buffer_size,

			.ia_valid = ATTR_SIZE | ATTR_CTIME,

		};



		reiserfs_write_unlock(inode->i_sb);

		mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR);

		down_write(&dentry->d_inode->i_alloc_sem);

		reiserfs_write_lock(inode->i_sb);



		err = reiserfs_setattr(dentry, &newattrs);

		up_write(&dentry->d_inode->i_alloc_sem);

		mutex_unlock(&dentry->d_inode->i_mutex);