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https://github.com/edk2-porting/linux-next.git
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f6c2d1fa63
pure bloat. SGI-PV: 952969 SGI-Modid: xfs-linux-melb:xfs-kern:26251a Signed-off-by: Nathan Scott <nathans@sgi.com>
309 lines
6.4 KiB
C
309 lines
6.4 KiB
C
/*
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* Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "xfs.h"
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#include "xfs_fs.h"
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#include "xfs_types.h"
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#include "xfs_log.h"
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#include "xfs_inum.h"
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#include "xfs_trans.h"
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#include "xfs_sb.h"
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#include "xfs_dir2.h"
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#include "xfs_dmapi.h"
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#include "xfs_mount.h"
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#include "xfs_bmap_btree.h"
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#include "xfs_dir2_sf.h"
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#include "xfs_attr_sf.h"
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#include "xfs_dinode.h"
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#include "xfs_inode.h"
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#include "xfs_utils.h"
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#include "xfs_error.h"
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#ifdef DEBUG
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int xfs_etrap[XFS_ERROR_NTRAP] = {
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0,
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};
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int
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xfs_error_trap(int e)
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{
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int i;
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if (!e)
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return 0;
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for (i = 0; i < XFS_ERROR_NTRAP; i++) {
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if (xfs_etrap[i] == 0)
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break;
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if (e != xfs_etrap[i])
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continue;
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cmn_err(CE_NOTE, "xfs_error_trap: error %d", e);
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BUG();
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break;
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}
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return e;
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}
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#endif
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#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
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int xfs_etest[XFS_NUM_INJECT_ERROR];
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int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
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char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR];
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void
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xfs_error_test_init(void)
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{
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memset(xfs_etest, 0, sizeof(xfs_etest));
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memset(xfs_etest_fsid, 0, sizeof(xfs_etest_fsid));
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memset(xfs_etest_fsname, 0, sizeof(xfs_etest_fsname));
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}
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int
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xfs_error_test(int error_tag, int *fsidp, char *expression,
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int line, char *file, unsigned long randfactor)
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{
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int i;
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int64_t fsid;
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if (random() % randfactor)
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return 0;
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memcpy(&fsid, fsidp, sizeof(xfs_fsid_t));
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for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
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if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) {
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cmn_err(CE_WARN,
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"Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
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expression, file, line, xfs_etest_fsname[i]);
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return 1;
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}
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}
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return 0;
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}
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int
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xfs_errortag_add(int error_tag, xfs_mount_t *mp)
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{
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int i;
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int len;
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int64_t fsid;
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memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
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for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
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if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) {
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cmn_err(CE_WARN, "XFS error tag #%d on", error_tag);
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return 0;
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}
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}
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for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
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if (xfs_etest[i] == 0) {
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cmn_err(CE_WARN, "Turned on XFS error tag #%d",
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error_tag);
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xfs_etest[i] = error_tag;
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xfs_etest_fsid[i] = fsid;
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len = strlen(mp->m_fsname);
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xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP);
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strcpy(xfs_etest_fsname[i], mp->m_fsname);
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return 0;
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}
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}
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cmn_err(CE_WARN, "error tag overflow, too many turned on");
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return 1;
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}
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int
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xfs_errortag_clear(int error_tag, xfs_mount_t *mp)
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{
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int i;
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int64_t fsid;
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memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
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for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
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if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) {
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xfs_etest[i] = 0;
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xfs_etest_fsid[i] = 0LL;
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kmem_free(xfs_etest_fsname[i],
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strlen(xfs_etest_fsname[i]) + 1);
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xfs_etest_fsname[i] = NULL;
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cmn_err(CE_WARN, "Cleared XFS error tag #%d",
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error_tag);
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return 0;
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}
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}
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cmn_err(CE_WARN, "XFS error tag %d not on", error_tag);
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return 1;
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}
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int
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xfs_errortag_clearall_umount(int64_t fsid, char *fsname, int loud)
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{
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int i;
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int cleared = 0;
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for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
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if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) &&
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xfs_etest[i] != 0) {
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cleared = 1;
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cmn_err(CE_WARN, "Clearing XFS error tag #%d",
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xfs_etest[i]);
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xfs_etest[i] = 0;
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xfs_etest_fsid[i] = 0LL;
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kmem_free(xfs_etest_fsname[i],
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strlen(xfs_etest_fsname[i]) + 1);
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xfs_etest_fsname[i] = NULL;
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}
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}
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if (loud || cleared)
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cmn_err(CE_WARN,
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"Cleared all XFS error tags for filesystem \"%s\"",
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fsname);
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return 0;
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}
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int
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xfs_errortag_clearall(xfs_mount_t *mp)
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{
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int64_t fsid;
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memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
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return xfs_errortag_clearall_umount(fsid, mp->m_fsname, 1);
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}
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#endif /* DEBUG || INDUCE_IO_ERROR */
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static void
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xfs_fs_vcmn_err(int level, xfs_mount_t *mp, char *fmt, va_list ap)
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{
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if (mp != NULL) {
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char *newfmt;
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int len = 16 + mp->m_fsname_len + strlen(fmt);
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newfmt = kmem_alloc(len, KM_SLEEP);
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sprintf(newfmt, "Filesystem \"%s\": %s", mp->m_fsname, fmt);
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icmn_err(level, newfmt, ap);
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kmem_free(newfmt, len);
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} else {
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icmn_err(level, fmt, ap);
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}
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}
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void
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xfs_fs_cmn_err(int level, xfs_mount_t *mp, char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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xfs_fs_vcmn_err(level, mp, fmt, ap);
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va_end(ap);
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}
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void
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xfs_cmn_err(int panic_tag, int level, xfs_mount_t *mp, char *fmt, ...)
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{
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va_list ap;
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#ifdef DEBUG
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xfs_panic_mask |= XFS_PTAG_SHUTDOWN_CORRUPT;
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#endif
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if (xfs_panic_mask && (xfs_panic_mask & panic_tag)
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&& (level & CE_ALERT)) {
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level &= ~CE_ALERT;
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level |= CE_PANIC;
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cmn_err(CE_ALERT, "XFS: Transforming an alert into a BUG.");
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}
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va_start(ap, fmt);
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xfs_fs_vcmn_err(level, mp, fmt, ap);
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va_end(ap);
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}
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void
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xfs_error_report(
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char *tag,
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int level,
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xfs_mount_t *mp,
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char *fname,
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int linenum,
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inst_t *ra)
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{
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if (level <= xfs_error_level) {
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xfs_cmn_err(XFS_PTAG_ERROR_REPORT,
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CE_ALERT, mp,
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"XFS internal error %s at line %d of file %s. Caller 0x%p\n",
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tag, linenum, fname, ra);
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xfs_stack_trace();
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}
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}
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STATIC void
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xfs_hex_dump(void *p, int length)
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{
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__uint8_t *uip = (__uint8_t*)p;
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int i;
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char sbuf[128], *s;
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s = sbuf;
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*s = '\0';
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for (i=0; i<length; i++, uip++) {
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if ((i % 16) == 0) {
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if (*s != '\0')
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cmn_err(CE_ALERT, "%s\n", sbuf);
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s = sbuf;
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sprintf(s, "0x%x: ", i);
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while( *s != '\0')
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s++;
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}
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sprintf(s, "%02x ", *uip);
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/*
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* the kernel sprintf is a void; user sprintf returns
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* the sprintf'ed string's length. Find the new end-
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* of-string
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*/
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while( *s != '\0')
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s++;
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}
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cmn_err(CE_ALERT, "%s\n", sbuf);
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}
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void
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xfs_corruption_error(
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char *tag,
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int level,
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xfs_mount_t *mp,
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void *p,
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char *fname,
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int linenum,
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inst_t *ra)
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{
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if (level <= xfs_error_level)
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xfs_hex_dump(p, 16);
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xfs_error_report(tag, level, mp, fname, linenum, ra);
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}
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