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Commit f30a1211 authored by Nathan Scott's avatar Nathan Scott
Browse files

[XFS] Dynamically allocate the xfs_dinode_core_t structure to reduce our 


stack footprint in xfs_ialloc_ag_alloc.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25420a

Signed-off-by: default avatarNathan Scott <nathans@sgi.com>
parent f020b67f

fs/xfs/xfs_ialloc.c

+4 −9
Original line number Diff line number Diff line
@@ -138,8 +138,6 @@ xfs_ialloc_ag_alloc( 
	int		version;	/* inode version number to use */

	int		isaligned;	/* inode allocation at stripe unit */

					/* boundary */

	xfs_dinode_core_t dic;          /* a dinode_core to copy to new */

					/* inodes */



	args.tp = tp;

	args.mp = tp->t_mountp;
@@ -250,10 +248,6 @@ xfs_ialloc_ag_alloc( 
	else

		version = XFS_DINODE_VERSION_1;



	memset(&dic, 0, sizeof(xfs_dinode_core_t));

	INT_SET(dic.di_magic, ARCH_CONVERT, XFS_DINODE_MAGIC);

	INT_SET(dic.di_version, ARCH_CONVERT, version);



	for (j = 0; j < nbufs; j++) {

		/*

		 * Get the block.
@@ -266,12 +260,13 @@ xfs_ialloc_ag_alloc( 
		ASSERT(fbuf);

		ASSERT(!XFS_BUF_GETERROR(fbuf));

		/*

		 * Loop over the inodes in this buffer.

		 * Set initial values for the inodes in this buffer.

		 */



		xfs_biozero(fbuf, 0, ninodes << args.mp->m_sb.sb_inodelog);

		for (i = 0; i < ninodes; i++) {

			free = XFS_MAKE_IPTR(args.mp, fbuf, i);

			memcpy(&(free->di_core), &dic, sizeof(xfs_dinode_core_t));

			INT_SET(free->di_core.di_magic, ARCH_CONVERT, XFS_DINODE_MAGIC);

			INT_SET(free->di_core.di_version, ARCH_CONVERT, version);

			INT_SET(free->di_next_unlinked, ARCH_CONVERT, NULLAGINO);

			xfs_ialloc_log_di(tp, fbuf, i,

				XFS_DI_CORE_BITS | XFS_DI_NEXT_UNLINKED);