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Commit 597a67e0 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs 

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: optimize the negative xattr caching
  xfs: prevent against ioend livelocks in xfs_file_fsync
  xfs: flag all buffers as metadata
  xfs: encapsulate a block of debug code
parents 28890d35 510792ee

fs/xfs/linux-2.6/xfs_buf.c

+3 −0
Original line number Diff line number Diff line
@@ -1224,6 +1224,9 @@ _xfs_buf_ioapply( 
		rw = READ;

	}



	/* we only use the buffer cache for meta-data */

	rw |= REQ_META;



next_chunk:

	atomic_inc(&bp->b_io_remaining);

	nr_pages = BIO_MAX_SECTORS >> (PAGE_SHIFT - BBSHIFT);

fs/xfs/linux-2.6/xfs_file.c

+2 −0
Original line number Diff line number Diff line
@@ -149,7 +149,9 @@ xfs_file_fsync( 


	xfs_iflags_clear(ip, XFS_ITRUNCATED);



	xfs_ilock(ip, XFS_IOLOCK_SHARED);

	xfs_ioend_wait(ip);

	xfs_iunlock(ip, XFS_IOLOCK_SHARED);



	if (mp->m_flags & XFS_MOUNT_BARRIER) {

		/*

fs/xfs/linux-2.6/xfs_iops.c

+7 −2
Original line number Diff line number Diff line
@@ -1194,9 +1194,14 @@ xfs_setup_inode( 
		break;

	}



	/* if there is no attribute fork no ACL can exist on this inode */

	if (!XFS_IFORK_Q(ip))

	/*

	 * If there is no attribute fork no ACL can exist on this inode,

	 * and it can't have any file capabilities attached to it either.

	 */

	if (!XFS_IFORK_Q(ip)) {

		inode_has_no_xattr(inode);

		cache_no_acl(inode);

	}



	xfs_iflags_clear(ip, XFS_INEW);

	barrier();

fs/xfs/xfs_da_btree.c

+21 −11
Original line number Diff line number Diff line
@@ -692,6 +692,24 @@ xfs_da_join(xfs_da_state_t *state) 
	return(error);

}



#ifdef	DEBUG

static void

xfs_da_blkinfo_onlychild_validate(struct xfs_da_blkinfo *blkinfo, __u16 level)

{

	__be16	magic = blkinfo->magic;



	if (level == 1) {

		ASSERT(magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||

		       magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));

	} else

		ASSERT(magic == cpu_to_be16(XFS_DA_NODE_MAGIC));

	ASSERT(!blkinfo->forw);

	ASSERT(!blkinfo->back);

}

#else	/* !DEBUG */

#define	xfs_da_blkinfo_onlychild_validate(blkinfo, level)

#endif	/* !DEBUG */



/*

 * We have only one entry in the root.  Copy the only remaining child of

 * the old root to block 0 as the new root node.
@@ -700,8 +718,6 @@ STATIC int 
xfs_da_root_join(xfs_da_state_t *state, xfs_da_state_blk_t *root_blk)

{

	xfs_da_intnode_t *oldroot;

	/* REFERENCED */

	xfs_da_blkinfo_t *blkinfo;

	xfs_da_args_t *args;

	xfs_dablk_t child;

	xfs_dabuf_t *bp;
@@ -732,15 +748,9 @@ xfs_da_root_join(xfs_da_state_t *state, xfs_da_state_blk_t *root_blk) 
	if (error)

		return(error);

	ASSERT(bp != NULL);

	blkinfo = bp->data;

	if (be16_to_cpu(oldroot->hdr.level) == 1) {

		ASSERT(blkinfo->magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||

		       blkinfo->magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));

	} else {

		ASSERT(blkinfo->magic == cpu_to_be16(XFS_DA_NODE_MAGIC));

	}

	ASSERT(!blkinfo->forw);

	ASSERT(!blkinfo->back);

	xfs_da_blkinfo_onlychild_validate(bp->data,

					be16_to_cpu(oldroot->hdr.level));



	memcpy(root_blk->bp->data, bp->data, state->blocksize);

	xfs_da_log_buf(args->trans, root_blk->bp, 0, state->blocksize - 1);

	error = xfs_da_shrink_inode(args, child, bp);