/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* Provide the external interfaces to manage attribute lists.
*/
+#define ATTR_SYSCOUNT 2
+STATIC struct attrnames posix_acl_access;
+STATIC struct attrnames posix_acl_default;
+STATIC struct attrnames *attr_system_names[ATTR_SYSCOUNT];
+
/*========================================================================
* Function prototypes for the kernel.
*========================================================================*/
/*
* Internal routines when attribute list is one block.
*/
+STATIC int xfs_attr_leaf_get(xfs_da_args_t *args);
STATIC int xfs_attr_leaf_addname(xfs_da_args_t *args);
STATIC int xfs_attr_leaf_removename(xfs_da_args_t *args);
STATIC int xfs_attr_leaf_list(xfs_attr_list_context_t *context);
/*
* Internal routines when attribute list is more than one block.
*/
+STATIC int xfs_attr_node_get(xfs_da_args_t *args);
STATIC int xfs_attr_node_addname(xfs_da_args_t *args);
STATIC int xfs_attr_node_removename(xfs_da_args_t *args);
STATIC int xfs_attr_node_list(xfs_attr_list_context_t *context);
*========================================================================*/
int
-xfs_attr_fetch(xfs_inode_t *ip, char *name, int namelen,
+xfs_attr_fetch(xfs_inode_t *ip, const char *name, int namelen,
char *value, int *valuelenp, int flags, struct cred *cred)
{
xfs_da_args_t args;
}
int
-xfs_attr_get(bhv_desc_t *bdp, char *name, char *value, int *valuelenp,
+xfs_attr_get(bhv_desc_t *bdp, const char *name, char *value, int *valuelenp,
int flags, struct cred *cred)
{
xfs_inode_t *ip = XFS_BHVTOI(bdp);
return(error);
}
-/*ARGSUSED*/
-int /* error */
-xfs_attr_set(bhv_desc_t *bdp, char *name, char *value, int valuelen, int flags,
- struct cred *cred)
+STATIC int
+xfs_attr_set_int(xfs_inode_t *dp, const char *name, int namelen,
+ char *value, int valuelen, int flags)
{
xfs_da_args_t args;
- xfs_inode_t *dp;
xfs_fsblock_t firstblock;
xfs_bmap_free_t flist;
int error, err2, committed;
int local, size;
uint nblks;
- xfs_mount_t *mp;
+ xfs_mount_t *mp = dp->i_mount;
int rsvd = (flags & ATTR_ROOT) != 0;
- int namelen;
-
- namelen = strlen(name);
- if (namelen >= MAXNAMELEN)
- return EFAULT; /* match IRIX behaviour */
-
- XFS_STATS_INC(xs_attr_set);
-
- dp = XFS_BHVTOI(bdp);
- mp = dp->i_mount;
- if (XFS_FORCED_SHUTDOWN(mp))
- return (EIO);
-
- xfs_ilock(dp, XFS_ILOCK_SHARED);
- if (!(flags & ATTR_SECURE) &&
- (error = xfs_iaccess(dp, S_IWUSR, cred))) {
- xfs_iunlock(dp, XFS_ILOCK_SHARED);
- return(XFS_ERROR(error));
- }
- xfs_iunlock(dp, XFS_ILOCK_SHARED);
/*
* Attach the dquots to the inode.
if ((error = XFS_QM_DQATTACH(mp, dp, 0)))
return (error);
+ /*
+ * Determine space new attribute will use, and if it would be
+ * "local" or "remote" (note: local != inline).
+ */
+ size = xfs_attr_leaf_newentsize(namelen, valuelen,
+ mp->m_sb.sb_blocksize, &local);
+
/*
* If the inode doesn't have an attribute fork, add one.
* (inode must not be locked when we call this routine)
*/
if (XFS_IFORK_Q(dp) == 0) {
- error = xfs_bmap_add_attrfork(dp, rsvd);
- if (error)
+ if ((error = xfs_bmap_add_attrfork(dp, size, rsvd)))
return(error);
}
args.firstblock = &firstblock;
args.flist = &flist;
args.whichfork = XFS_ATTR_FORK;
+ args.addname = 1;
args.oknoent = 1;
- /* Determine space new attribute will use, and if it will be inline
- * or out of line.
- */
- size = xfs_attr_leaf_newentsize(&args, mp->m_sb.sb_blocksize, &local);
-
nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
if (local) {
if (size > (mp->m_sb.sb_blocksize >> 1)) {
* Build initial attribute list (if required).
*/
if (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS)
- (void)xfs_attr_shortform_create(&args);
+ xfs_attr_shortform_create(&args);
/*
* Try to add the attr to the attribute list in
return(error);
}
-/*
- * Generic handler routine to remove a name from an attribute list.
- * Transitions attribute list from Btree to shortform as necessary.
- */
-/*ARGSUSED*/
-int /* error */
-xfs_attr_remove(bhv_desc_t *bdp, char *name, int flags, struct cred *cred)
+int
+xfs_attr_set(bhv_desc_t *bdp, const char *name, char *value, int valuelen, int flags,
+ struct cred *cred)
{
- xfs_da_args_t args;
- xfs_inode_t *dp;
- xfs_fsblock_t firstblock;
- xfs_bmap_free_t flist;
- int error;
- xfs_mount_t *mp;
- int namelen;
+ xfs_inode_t *dp;
+ int namelen, error;
- ASSERT(MAXNAMELEN-1<=0xff); /* length is stored in uint8 */
namelen = strlen(name);
- if (namelen>=MAXNAMELEN)
- return EFAULT; /* match irix behaviour */
+ if (namelen >= MAXNAMELEN)
+ return EFAULT; /* match IRIX behaviour */
- XFS_STATS_INC(xs_attr_remove);
+ XFS_STATS_INC(xs_attr_set);
dp = XFS_BHVTOI(bdp);
- mp = dp->i_mount;
- if (XFS_FORCED_SHUTDOWN(mp))
+ if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return (EIO);
xfs_ilock(dp, XFS_ILOCK_SHARED);
(error = xfs_iaccess(dp, S_IWUSR, cred))) {
xfs_iunlock(dp, XFS_ILOCK_SHARED);
return(XFS_ERROR(error));
- } else if (XFS_IFORK_Q(dp) == 0 ||
- (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
- dp->i_d.di_anextents == 0)) {
- xfs_iunlock(dp, XFS_ILOCK_SHARED);
- return(XFS_ERROR(ENOATTR));
}
xfs_iunlock(dp, XFS_ILOCK_SHARED);
+ return xfs_attr_set_int(dp, name, namelen, value, valuelen, flags);
+}
+
+/*
+ * Generic handler routine to remove a name from an attribute list.
+ * Transitions attribute list from Btree to shortform as necessary.
+ */
+STATIC int
+xfs_attr_remove_int(xfs_inode_t *dp, const char *name, int namelen, int flags)
+{
+ xfs_da_args_t args;
+ xfs_fsblock_t firstblock;
+ xfs_bmap_free_t flist;
+ int error;
+ xfs_mount_t *mp = dp->i_mount;
+
/*
* Fill in the arg structure for this request.
*/
XFS_ATTRRM_LOG_COUNT))) {
xfs_trans_cancel(args.trans, 0);
return(error);
-
}
xfs_ilock(dp, XFS_ILOCK_EXCL);
return(error);
}
+int
+xfs_attr_remove(bhv_desc_t *bdp, const char *name, int flags, struct cred *cred)
+{
+ xfs_inode_t *dp;
+ int namelen, error;
+
+ namelen = strlen(name);
+ if (namelen >= MAXNAMELEN)
+ return EFAULT; /* match IRIX behaviour */
+
+ XFS_STATS_INC(xs_attr_remove);
+
+ dp = XFS_BHVTOI(bdp);
+ if (XFS_FORCED_SHUTDOWN(dp->i_mount))
+ return (EIO);
+
+ xfs_ilock(dp, XFS_ILOCK_SHARED);
+ if (!(flags & ATTR_SECURE) &&
+ (error = xfs_iaccess(dp, S_IWUSR, cred))) {
+ xfs_iunlock(dp, XFS_ILOCK_SHARED);
+ return(XFS_ERROR(error));
+ } else if (XFS_IFORK_Q(dp) == 0 ||
+ (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
+ dp->i_d.di_anextents == 0)) {
+ xfs_iunlock(dp, XFS_ILOCK_SHARED);
+ return(XFS_ERROR(ENOATTR));
+ }
+ xfs_iunlock(dp, XFS_ILOCK_SHARED);
+
+ return xfs_attr_remove_int(dp, name, namelen, flags);
+}
+
/*
* Generate a list of extended attribute names and optionally
* also value lengths. Positive return value follows the XFS
STATIC int
xfs_attr_shortform_addname(xfs_da_args_t *args)
{
- int newsize, retval;
+ int newsize, forkoff, retval;
retval = xfs_attr_shortform_lookup(args);
if ((args->flags & ATTR_REPLACE) && (retval == ENOATTR)) {
ASSERT(retval == 0);
}
+ if (args->namelen >= XFS_ATTR_SF_ENTSIZE_MAX ||
+ args->valuelen >= XFS_ATTR_SF_ENTSIZE_MAX)
+ return(XFS_ERROR(ENOSPC));
+
newsize = XFS_ATTR_SF_TOTSIZE(args->dp);
newsize += XFS_ATTR_SF_ENTSIZE_BYNAME(args->namelen, args->valuelen);
- if ((newsize <= XFS_IFORK_ASIZE(args->dp)) &&
- (args->namelen < XFS_ATTR_SF_ENTSIZE_MAX) &&
- (args->valuelen < XFS_ATTR_SF_ENTSIZE_MAX)) {
- retval = xfs_attr_shortform_add(args);
- ASSERT(retval == 0);
- } else {
+
+ forkoff = xfs_attr_shortform_bytesfit(args->dp, newsize);
+ if (!forkoff)
return(XFS_ERROR(ENOSPC));
- }
+
+ xfs_attr_shortform_add(args, forkoff);
return(0);
}
{
xfs_inode_t *dp;
xfs_dabuf_t *bp;
- int retval, error, committed;
+ int retval, error, committed, forkoff;
/*
* Read the (only) block in the attribute list in.
/*
* If the result is small enough, shrink it all into the inode.
*/
- if (xfs_attr_shortform_allfit(bp, dp)) {
+ if ((forkoff = xfs_attr_shortform_allfit(bp, dp))) {
XFS_BMAP_INIT(args->flist, args->firstblock);
- error = xfs_attr_leaf_to_shortform(bp, args);
+ error = xfs_attr_leaf_to_shortform(bp, args, forkoff);
/* bp is gone due to xfs_da_shrink_inode */
if (!error) {
error = xfs_bmap_finish(&args->trans,
{
xfs_inode_t *dp;
xfs_dabuf_t *bp;
- int committed;
- int error;
+ int error, committed, forkoff;
/*
* Remove the attribute.
/*
* If the result is small enough, shrink it all into the inode.
*/
- if (xfs_attr_shortform_allfit(bp, dp)) {
+ if ((forkoff = xfs_attr_shortform_allfit(bp, dp))) {
XFS_BMAP_INIT(args->flist, args->firstblock);
- error = xfs_attr_leaf_to_shortform(bp, args);
+ error = xfs_attr_leaf_to_shortform(bp, args, forkoff);
/* bp is gone due to xfs_da_shrink_inode */
if (!error) {
error = xfs_bmap_finish(&args->trans, args->flist,
* This leaf block cannot have a "remote" value, we only call this routine
* if bmap_one_block() says there is only one block (ie: no remote blks).
*/
-int
+STATIC int
xfs_attr_leaf_get(xfs_da_args_t *args)
{
xfs_dabuf_t *bp;
xfs_da_state_blk_t *blk;
xfs_inode_t *dp;
xfs_dabuf_t *bp;
- int retval, error, committed;
+ int retval, error, committed, forkoff;
/*
* Tie a string around our finger to remind us where we are.
bp->data)->hdr.info.magic, ARCH_CONVERT)
== XFS_ATTR_LEAF_MAGIC);
- if (xfs_attr_shortform_allfit(bp, dp)) {
+ if ((forkoff = xfs_attr_shortform_allfit(bp, dp))) {
XFS_BMAP_INIT(args->flist, args->firstblock);
- error = xfs_attr_leaf_to_shortform(bp, args);
+ error = xfs_attr_leaf_to_shortform(bp, args, forkoff);
/* bp is gone due to xfs_da_shrink_inode */
if (!error) {
error = xfs_bmap_finish(&args->trans,
* block, ie: both true Btree attr lists and for single-leaf-blocks with
* "remote" values taking up more blocks.
*/
-int
+STATIC int
xfs_attr_node_get(xfs_da_args_t *args)
{
xfs_da_state_t *state;
return xfs_acl_vhasacl_default(vp);
}
-struct attrnames posix_acl_access = {
+STATIC struct attrnames posix_acl_access = {
.attr_name = "posix_acl_access",
.attr_namelen = sizeof("posix_acl_access") - 1,
.attr_get = posix_acl_access_get,
.attr_exists = posix_acl_access_exists,
};
-struct attrnames posix_acl_default = {
+STATIC struct attrnames posix_acl_default = {
.attr_name = "posix_acl_default",
.attr_namelen = sizeof("posix_acl_default") - 1,
.attr_get = posix_acl_default_get,
.attr_exists = posix_acl_default_exists,
};
-struct attrnames *attr_system_names[] =
+STATIC struct attrnames *attr_system_names[] =
{ &posix_acl_access, &posix_acl_default };
projects / linux-2.6-omap-h63xx.git / blobdiff