diff options
author | Olaf Weber <olaf@sgi.com> | 2006-06-09 14:48:12 +1000 |
---|---|---|
committer | Nathan Scott <nathans@sgi.com> | 2006-06-09 14:48:12 +1000 |
commit | 3e57ecf640428c01ba1ed8c8fc538447ada1715b (patch) | |
tree | bcc92b0017b5ec8e106649cd53beffdd6addde07 /fs/xfs/xfs_dfrag.c | |
parent | 128e6ced247cda88f96fa9f2e4ba8b2c4a681560 (diff) | |
download | linux-next-3e57ecf640428c01ba1ed8c8fc538447ada1715b.tar.gz |
[XFS] Add parameters to xfs_bmapi() and xfs_bunmapi() to have them report
the range spanned by modifications to the in-core extent map. Add
XFS_BUNMAPI() and XFS_SWAP_EXTENTS() macros that call xfs_bunmapi() and
xfs_swap_extents() via the ioops vector. Change all calls that may modify
the in-core extent map for the data fork to go through the ioops vector.
This allows a cache of extent map data to be kept in sync.
SGI-PV: 947615
SGI-Modid: xfs-linux-melb:xfs-kern:209226a
Signed-off-by: Olaf Weber <olaf@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_dfrag.c')
-rw-r--r-- | fs/xfs/xfs_dfrag.c | 74 |
1 files changed, 49 insertions, 25 deletions
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c index 4968a6358e61..99daf8c0f900 100644 --- a/fs/xfs/xfs_dfrag.c +++ b/fs/xfs/xfs_dfrag.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2006 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -54,24 +54,14 @@ xfs_swapext( xfs_swapext_t __user *sxu) { xfs_swapext_t *sxp; - xfs_inode_t *ip=NULL, *tip=NULL, *ips[2]; - xfs_trans_t *tp; + xfs_inode_t *ip=NULL, *tip=NULL; xfs_mount_t *mp; - xfs_bstat_t *sbp; struct file *fp = NULL, *tfp = NULL; vnode_t *vp, *tvp; - static uint lock_flags = XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL; - int ilf_fields, tilf_fields; int error = 0; - xfs_ifork_t *tempifp, *ifp, *tifp; - __uint64_t tmp; - int aforkblks = 0; - int taforkblks = 0; - char locked = 0; sxp = kmem_alloc(sizeof(xfs_swapext_t), KM_MAYFAIL); - tempifp = kmem_alloc(sizeof(xfs_ifork_t), KM_MAYFAIL); - if (!sxp || !tempifp) { + if (!sxp) { error = XFS_ERROR(ENOMEM); goto error0; } @@ -118,14 +108,56 @@ xfs_swapext( mp = ip->i_mount; - sbp = &sxp->sx_stat; - if (XFS_FORCED_SHUTDOWN(mp)) { error = XFS_ERROR(EIO); goto error0; } - locked = 1; + error = XFS_SWAP_EXTENTS(mp, &ip->i_iocore, &tip->i_iocore, sxp); + + error0: + if (fp != NULL) + fput(fp); + if (tfp != NULL) + fput(tfp); + + if (sxp != NULL) + kmem_free(sxp, sizeof(xfs_swapext_t)); + + return error; +} + +int +xfs_swap_extents( + xfs_inode_t *ip, + xfs_inode_t *tip, + xfs_swapext_t *sxp) +{ + xfs_mount_t *mp; + xfs_inode_t *ips[2]; + xfs_trans_t *tp; + xfs_bstat_t *sbp = &sxp->sx_stat; + vnode_t *vp, *tvp; + xfs_ifork_t *tempifp, *ifp, *tifp; + int ilf_fields, tilf_fields; + static uint lock_flags = XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL; + int error = 0; + int aforkblks = 0; + int taforkblks = 0; + __uint64_t tmp; + char locked = 0; + + mp = ip->i_mount; + + tempifp = kmem_alloc(sizeof(xfs_ifork_t), KM_MAYFAIL); + if (!tempifp) { + error = XFS_ERROR(ENOMEM); + goto error0; + } + + sbp = &sxp->sx_stat; + vp = XFS_ITOV(ip); + tvp = XFS_ITOV(tip); /* Lock in i_ino order */ if (ip->i_ino < tip->i_ino) { @@ -137,6 +169,7 @@ xfs_swapext( } xfs_lock_inodes(ips, 2, 0, lock_flags); + locked = 1; /* Check permissions */ error = xfs_iaccess(ip, S_IWUSR, NULL); @@ -360,16 +393,7 @@ xfs_swapext( xfs_iunlock(ip, lock_flags); xfs_iunlock(tip, lock_flags); } - - if (fp != NULL) - fput(fp); - if (tfp != NULL) - fput(tfp); - - if (sxp != NULL) - kmem_free(sxp, sizeof(xfs_swapext_t)); if (tempifp != NULL) kmem_free(tempifp, sizeof(xfs_ifork_t)); - return error; } |