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xfs: split out symlink code into it's own file.

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The symlink code is about to get more complicated when CRCs are
added for remote symlink blocks. The symlink management code is
mostly self contained, so move it to it's own files so that all the
new code and the existing symlink code will not be intermingled
with other unrelated code.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Dave Chinner 2013-04-03 16:11:18 +11:00 • committed by Ben Myers
parent 93848a999c
commit 19de7351a8
5 changed files with 578 additions and 493 deletions
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21
fs/xfs/xfs_bmap.c
View file

@ -47,6 +47,7 @@
#include "xfs_filestream.h"
#include "xfs_vnodeops.h"
#include "xfs_trace.h"
#include "xfs_symlink.h"
kmem_zone_t *xfs_bmap_free_item_zone;
@ -1321,9 +1322,10 @@ xfs_bmap_add_attrfork_extents(
}
/*
* Block initialisation functions for local to extent format conversion.
* As these get more complex, they will be moved to the relevant files,
* but for now they are too simple to worry about.
* Block initialisation function for local to extent format conversion.
*
* This shouldn't actually be called by anyone, so make sure debug kernels cause
* a noticable failure.
*/
STATIC void
xfs_bmap_local_to_extents_init_fn(
@ -1332,23 +1334,12 @@ xfs_bmap_local_to_extents_init_fn(
struct xfs_inode *ip,
struct xfs_ifork *ifp)
{
ASSERT(0);
bp->b_ops = &xfs_bmbt_buf_ops;
memcpy(bp->b_addr, ifp->if_u1.if_data, ifp->if_bytes);
xfs_trans_buf_set_type(tp, bp, XFS_BLF_BTREE_BUF);
}
STATIC void
xfs_symlink_local_to_remote(
struct xfs_trans *tp,
struct xfs_buf *bp,
struct xfs_inode *ip,
struct xfs_ifork *ifp)
{
/* remote symlink blocks are not verifiable until CRCs come along */
bp->b_ops = NULL;
memcpy(bp->b_addr, ifp->if_u1.if_data, ifp->if_bytes);
}
/*
* Called from xfs_bmap_add_attrfork to handle local format files. Each
* different data fork content type needs a different callout to do the