diff options
Diffstat (limited to 'fs/xfs/xfs_rw.c')
| -rw-r--r-- | fs/xfs/xfs_rw.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/fs/xfs/xfs_rw.c b/fs/xfs/xfs_rw.c deleted file mode 100644 index 56861d5daae..00000000000 --- a/fs/xfs/xfs_rw.c +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include "xfs.h" -#include "xfs_fs.h" -#include "xfs_types.h" -#include "xfs_bit.h" -#include "xfs_log.h" -#include "xfs_inum.h" -#include "xfs_trans.h" -#include "xfs_sb.h" -#include "xfs_ag.h" -#include "xfs_mount.h" -#include "xfs_bmap_btree.h" -#include "xfs_dinode.h" -#include "xfs_inode.h" -#include "xfs_error.h" -#include "xfs_rw.h" - -/* - * Force a shutdown of the filesystem instantly while keeping - * the filesystem consistent. We don't do an unmount here; just shutdown - * the shop, make sure that absolutely nothing persistent happens to - * this filesystem after this point. - */ -void -xfs_do_force_shutdown( - xfs_mount_t *mp, - int flags, - char *fname, - int lnnum) -{ - int logerror; - - logerror = flags & SHUTDOWN_LOG_IO_ERROR; - - if (!(flags & SHUTDOWN_FORCE_UMOUNT)) { - cmn_err(CE_NOTE, "xfs_force_shutdown(%s,0x%x) called from " - "line %d of file %s. Return address = 0x%p", - mp->m_fsname, flags, lnnum, fname, __return_address); - } - /* - * No need to duplicate efforts. - */ - if (XFS_FORCED_SHUTDOWN(mp) && !logerror) - return; - - /* - * This flags XFS_MOUNT_FS_SHUTDOWN, makes sure that we don't - * queue up anybody new on the log reservations, and wakes up - * everybody who's sleeping on log reservations to tell them - * the bad news. - */ - if (xfs_log_force_umount(mp, logerror)) - return; - - if (flags & SHUTDOWN_CORRUPT_INCORE) { - xfs_cmn_err(XFS_PTAG_SHUTDOWN_CORRUPT, CE_ALERT, mp, - "Corruption of in-memory data detected. Shutting down filesystem: %s", - mp->m_fsname); - if (XFS_ERRLEVEL_HIGH <= xfs_error_level) { - xfs_stack_trace(); - } - } else if (!(flags & SHUTDOWN_FORCE_UMOUNT)) { - if (logerror) { - xfs_cmn_err(XFS_PTAG_SHUTDOWN_LOGERROR, CE_ALERT, mp, - "Log I/O Error Detected. Shutting down filesystem: %s", - mp->m_fsname); - } else if (flags & SHUTDOWN_DEVICE_REQ) { - xfs_cmn_err(XFS_PTAG_SHUTDOWN_IOERROR, CE_ALERT, mp, - "All device paths lost. Shutting down filesystem: %s", - mp->m_fsname); - } else if (!(flags & SHUTDOWN_REMOTE_REQ)) { - xfs_cmn_err(XFS_PTAG_SHUTDOWN_IOERROR, CE_ALERT, mp, - "I/O Error Detected. Shutting down filesystem: %s", - mp->m_fsname); - } - } - if (!(flags & SHUTDOWN_FORCE_UMOUNT)) { - cmn_err(CE_ALERT, "Please umount the filesystem, " - "and rectify the problem(s)"); - } -} - -/* - * Prints out an ALERT message about I/O error. - */ -void -xfs_ioerror_alert( - char *func, - struct xfs_mount *mp, - xfs_buf_t *bp, - xfs_daddr_t blkno) -{ - cmn_err(CE_ALERT, - "I/O error in filesystem (\"%s\") meta-data dev %s block 0x%llx" - " (\"%s\") error %d buf count %zd", - (!mp || !mp->m_fsname) ? "(fs name not set)" : mp->m_fsname, - XFS_BUFTARG_NAME(XFS_BUF_TARGET(bp)), - (__uint64_t)blkno, func, - XFS_BUF_GETERROR(bp), XFS_BUF_COUNT(bp)); -} - -/* - * This isn't an absolute requirement, but it is - * just a good idea to call xfs_read_buf instead of - * directly doing a read_buf call. For one, we shouldn't - * be doing this disk read if we are in SHUTDOWN state anyway, - * so this stops that from happening. Secondly, this does all - * the error checking stuff and the brelse if appropriate for - * the caller, so the code can be a little leaner. - */ - -int -xfs_read_buf( - struct xfs_mount *mp, - xfs_buftarg_t *target, - xfs_daddr_t blkno, - int len, - uint flags, - xfs_buf_t **bpp) -{ - xfs_buf_t *bp; - int error; - - if (!flags) - flags = XBF_LOCK | XBF_MAPPED; - - bp = xfs_buf_read(target, blkno, len, flags); - if (!bp) - return XFS_ERROR(EIO); - error = XFS_BUF_GETERROR(bp); - if (bp && !error && !XFS_FORCED_SHUTDOWN(mp)) { - *bpp = bp; - } else { - *bpp = NULL; - if (error) { - xfs_ioerror_alert("xfs_read_buf", mp, bp, XFS_BUF_ADDR(bp)); - } else { - error = XFS_ERROR(EIO); - } - if (bp) { - XFS_BUF_UNDONE(bp); - XFS_BUF_UNDELAYWRITE(bp); - XFS_BUF_STALE(bp); - /* - * brelse clears B_ERROR and b_error - */ - xfs_buf_relse(bp); - } - } - return (error); -} - -/* - * helper function to extract extent size hint from inode - */ -xfs_extlen_t -xfs_get_extsz_hint( - struct xfs_inode *ip) -{ - xfs_extlen_t extsz; - - if (unlikely(XFS_IS_REALTIME_INODE(ip))) { - extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE) - ? ip->i_d.di_extsize - : ip->i_mount->m_sb.sb_rextsize; - ASSERT(extsz); - } else { - extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE) - ? ip->i_d.di_extsize : 0; - } - - return extsz; -} |