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path: root/fs/xfs/libxfs/xfs_inode_fork.c
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Diffstat (limited to 'fs/xfs/libxfs/xfs_inode_fork.c')
-rw-r--r--fs/xfs/libxfs/xfs_inode_fork.c74
1 files changed, 23 insertions, 51 deletions
diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c
index 183ec0cb8921..f9acf1d436f6 100644
--- a/fs/xfs/libxfs/xfs_inode_fork.c
+++ b/fs/xfs/libxfs/xfs_inode_fork.c
@@ -158,7 +158,6 @@ xfs_init_local_fork(
}
ifp->if_bytes = size;
- ifp->if_real_bytes = real_size;
ifp->if_flags &= ~(XFS_IFEXTENTS | XFS_IFBROOT);
ifp->if_flags |= XFS_IFINLINE;
}
@@ -226,7 +225,6 @@ xfs_iformat_extents(
return -EFSCORRUPTED;
}
- ifp->if_real_bytes = 0;
ifp->if_bytes = 0;
ifp->if_u1.if_root = NULL;
ifp->if_height = 0;
@@ -271,7 +269,7 @@ xfs_iformat_btree(
{
struct xfs_mount *mp = ip->i_mount;
xfs_bmdr_block_t *dfp;
- xfs_ifork_t *ifp;
+ struct xfs_ifork *ifp;
/* REFERENCED */
int nrecs;
int size;
@@ -317,7 +315,6 @@ xfs_iformat_btree(
ifp->if_flags &= ~XFS_IFEXTENTS;
ifp->if_flags |= XFS_IFBROOT;
- ifp->if_real_bytes = 0;
ifp->if_bytes = 0;
ifp->if_u1.if_root = NULL;
ifp->if_height = 0;
@@ -350,7 +347,7 @@ xfs_iroot_realloc(
{
struct xfs_mount *mp = ip->i_mount;
int cur_max;
- xfs_ifork_t *ifp;
+ struct xfs_ifork *ifp;
struct xfs_btree_block *new_broot;
int new_max;
size_t new_size;
@@ -471,55 +468,34 @@ xfs_iroot_realloc(
*/
void
xfs_idata_realloc(
- xfs_inode_t *ip,
- int byte_diff,
- int whichfork)
+ struct xfs_inode *ip,
+ int byte_diff,
+ int whichfork)
{
- xfs_ifork_t *ifp;
- int new_size;
- int real_size;
-
- if (byte_diff == 0) {
- return;
- }
+ struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork);
+ int new_size = (int)ifp->if_bytes + byte_diff;
- ifp = XFS_IFORK_PTR(ip, whichfork);
- new_size = (int)ifp->if_bytes + byte_diff;
ASSERT(new_size >= 0);
+ ASSERT(new_size <= XFS_IFORK_SIZE(ip, whichfork));
+
+ if (byte_diff == 0)
+ return;
if (new_size == 0) {
kmem_free(ifp->if_u1.if_data);
ifp->if_u1.if_data = NULL;
- real_size = 0;
- } else {
- /*
- * Stuck with malloc/realloc.
- * For inline data, the underlying buffer must be
- * a multiple of 4 bytes in size so that it can be
- * logged and stay on word boundaries. We enforce
- * that here.
- */
- real_size = roundup(new_size, 4);
- if (ifp->if_u1.if_data == NULL) {
- ASSERT(ifp->if_real_bytes == 0);
- ifp->if_u1.if_data = kmem_alloc(real_size,
- KM_SLEEP | KM_NOFS);
- } else {
- /*
- * Only do the realloc if the underlying size
- * is really changing.
- */
- if (ifp->if_real_bytes != real_size) {
- ifp->if_u1.if_data =
- kmem_realloc(ifp->if_u1.if_data,
- real_size,
- KM_SLEEP | KM_NOFS);
- }
- }
+ ifp->if_bytes = 0;
+ return;
}
- ifp->if_real_bytes = real_size;
+
+ /*
+ * For inline data, the underlying buffer must be a multiple of 4 bytes
+ * in size so that it can be logged and stay on word boundaries.
+ * We enforce that here.
+ */
+ ifp->if_u1.if_data = kmem_realloc(ifp->if_u1.if_data,
+ roundup(new_size, 4), KM_SLEEP | KM_NOFS);
ifp->if_bytes = new_size;
- ASSERT(ifp->if_bytes <= XFS_IFORK_SIZE(ip, whichfork));
}
void
@@ -527,7 +503,7 @@ xfs_idestroy_fork(
xfs_inode_t *ip,
int whichfork)
{
- xfs_ifork_t *ifp;
+ struct xfs_ifork *ifp;
ifp = XFS_IFORK_PTR(ip, whichfork);
if (ifp->if_broot != NULL) {
@@ -543,17 +519,13 @@ xfs_idestroy_fork(
*/
if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) {
if (ifp->if_u1.if_data != NULL) {
- ASSERT(ifp->if_real_bytes != 0);
kmem_free(ifp->if_u1.if_data);
ifp->if_u1.if_data = NULL;
- ifp->if_real_bytes = 0;
}
} else if ((ifp->if_flags & XFS_IFEXTENTS) && ifp->if_height) {
xfs_iext_destroy(ifp);
}
- ASSERT(ifp->if_real_bytes == 0);
-
if (whichfork == XFS_ATTR_FORK) {
kmem_zone_free(xfs_ifork_zone, ip->i_afp);
ip->i_afp = NULL;
@@ -620,7 +592,7 @@ xfs_iflush_fork(
int whichfork)
{
char *cp;
- xfs_ifork_t *ifp;
+ struct xfs_ifork *ifp;
xfs_mount_t *mp;
static const short brootflag[2] =
{ XFS_ILOG_DBROOT, XFS_ILOG_ABROOT };