struct xfs_bmalloca *args = container_of(work,
struct xfs_bmalloca, work);
unsigned long pflags;
+ unsigned long new_pflags = PF_FSTRANS;
- /* we are in a transaction context here */
- current_set_flags_nested(&pflags, PF_FSTRANS);
+ /*
+ * we are in a transaction context here, but may also be doing work
+ * in kswapd context, and hence we may need to inherit that state
+ * temporarily to ensure that we don't block waiting for memory reclaim
+ * in any way.
+ */
+ if (args->kswapd)
+ new_pflags |= PF_MEMALLOC | PF_SWAPWRITE | PF_KSWAPD;
+
+ current_set_flags_nested(&pflags, new_pflags);
args->result = __xfs_bmapi_allocate(args);
complete(args->done);
- current_restore_flags_nested(&pflags, PF_FSTRANS);
+ current_restore_flags_nested(&pflags, new_pflags);
}
/*
args->done = &done;
+ args->kswapd = current_is_kswapd();
INIT_WORK_ONSTACK(&args->work, xfs_bmapi_allocate_worker);
queue_work(xfs_alloc_wq, &args->work);
wait_for_completion(&done);
xfs_trans_brelse(tp, bp);
XFS_ERROR_REPORT("xfs_bmap_count_tree(1)",
XFS_ERRLEVEL_LOW, mp);
- return XFS_ERROR(EFSCORRUPTED);
+ return EFSCORRUPTED;
}
xfs_trans_brelse(tp, bp);
} else {
if (unlikely(xfs_bmap_count_tree(mp, tp, ifp, bno, level, count) < 0)) {
XFS_ERROR_REPORT("xfs_bmap_count_blocks(2)", XFS_ERRLEVEL_LOW,
mp);
- return XFS_ERROR(EFSCORRUPTED);
+ return EFSCORRUPTED;
}
return 0;
if (ip->i_d.di_aformat != XFS_DINODE_FMT_EXTENTS &&
ip->i_d.di_aformat != XFS_DINODE_FMT_BTREE &&
ip->i_d.di_aformat != XFS_DINODE_FMT_LOCAL)
- return XFS_ERROR(EINVAL);
+ return EINVAL;
} else if (unlikely(
ip->i_d.di_aformat != 0 &&
ip->i_d.di_aformat != XFS_DINODE_FMT_EXTENTS)) {
XFS_ERROR_REPORT("xfs_getbmap", XFS_ERRLEVEL_LOW,
ip->i_mount);
- return XFS_ERROR(EFSCORRUPTED);
+ return EFSCORRUPTED;
}
prealloced = 0;
if (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS &&
ip->i_d.di_format != XFS_DINODE_FMT_BTREE &&
ip->i_d.di_format != XFS_DINODE_FMT_LOCAL)
- return XFS_ERROR(EINVAL);
+ return EINVAL;
if (xfs_get_extsz_hint(ip) ||
ip->i_d.di_flags & (XFS_DIFLAG_PREALLOC|XFS_DIFLAG_APPEND)){
bmv->bmv_entries = 0;
return 0;
} else if (bmv->bmv_length < 0) {
- return XFS_ERROR(EINVAL);
+ return EINVAL;
}
nex = bmv->bmv_count - 1;
if (nex <= 0)
- return XFS_ERROR(EINVAL);
+ return EINVAL;
bmvend = bmv->bmv_offset + bmv->bmv_length;
if (bmv->bmv_count > ULONG_MAX / sizeof(struct getbmapx))
- return XFS_ERROR(ENOMEM);
+ return ENOMEM;
out = kmem_zalloc_large(bmv->bmv_count * sizeof(struct getbmapx), 0);
if (!out)
- return XFS_ERROR(ENOMEM);
+ return ENOMEM;
xfs_ilock(ip, XFS_IOLOCK_SHARED);
if (whichfork == XFS_DATA_FORK) {
trace_xfs_alloc_file_space(ip);
if (XFS_FORCED_SHUTDOWN(mp))
- return XFS_ERROR(EIO);
+ return EIO;
error = xfs_qm_dqattach(ip, 0);
if (error)
return error;
if (len <= 0)
- return XFS_ERROR(EINVAL);
+ return EINVAL;
rt = XFS_IS_REALTIME_INODE(ip);
extsz = xfs_get_extsz_hint(ip);
allocated_fsb = imapp->br_blockcount;
if (nimaps == 0) {
- error = XFS_ERROR(ENOSPC);
+ error = ENOSPC;
break;
}
mp->m_rtdev_targp : mp->m_ddev_targp,
BTOBB(mp->m_sb.sb_blocksize), 0);
if (!bp)
- return XFS_ERROR(ENOMEM);
+ return ENOMEM;
xfs_buf_unlock(bp);
XFS_BUF_SET_ADDR(bp, xfs_fsb_to_db(ip, imap.br_startblock));
if (XFS_FORCED_SHUTDOWN(mp)) {
- error = XFS_ERROR(EIO);
+ error = EIO;
break;
}
xfs_buf_iorequest(bp);
XFS_BUF_WRITE(bp);
if (XFS_FORCED_SHUTDOWN(mp)) {
- error = XFS_ERROR(EIO);
+ error = EIO;
break;
}
xfs_buf_iorequest(bp);
while (!error && !done) {
tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT);
- tp->t_flags |= XFS_TRANS_RESERVE;
/*
* We would need to reserve permanent block for transaction.
* This will come into picture when after shifting extent into
error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write,
XFS_DIOSTRAT_SPACE_RES(mp, 0), 0);
if (error) {
- ASSERT(error == ENOSPC || XFS_FORCED_SHUTDOWN(mp));
xfs_trans_cancel(tp, 0);
break;
}
tempifp = kmem_alloc(sizeof(xfs_ifork_t), KM_MAYFAIL);
if (!tempifp) {
- error = XFS_ERROR(ENOMEM);
+ error = ENOMEM;
goto out;
}
/* Verify that both files have the same format */
if ((ip->i_d.di_mode & S_IFMT) != (tip->i_d.di_mode & S_IFMT)) {
- error = XFS_ERROR(EINVAL);
+ error = EINVAL;
goto out_unlock;
}
/* Verify both files are either real-time or non-realtime */
if (XFS_IS_REALTIME_INODE(ip) != XFS_IS_REALTIME_INODE(tip)) {
- error = XFS_ERROR(EINVAL);
+ error = EINVAL;
goto out_unlock;
}
/* Verify O_DIRECT for ftmp */
if (VN_CACHED(VFS_I(tip)) != 0) {
- error = XFS_ERROR(EINVAL);
+ error = EINVAL;
goto out_unlock;
}
if (sxp->sx_offset != 0 ||
sxp->sx_length != ip->i_d.di_size ||
sxp->sx_length != tip->i_d.di_size) {
- error = XFS_ERROR(EFAULT);
+ error = EFAULT;
goto out_unlock;
}
(sbp->bs_ctime.tv_nsec != VFS_I(ip)->i_ctime.tv_nsec) ||
(sbp->bs_mtime.tv_sec != VFS_I(ip)->i_mtime.tv_sec) ||
(sbp->bs_mtime.tv_nsec != VFS_I(ip)->i_mtime.tv_nsec)) {
- error = XFS_ERROR(EBUSY);
+ error = EBUSY;
goto out_unlock;
}
* until we have switched the extents.
*/
if (VN_MAPPED(VFS_I(ip))) {
- error = XFS_ERROR(EBUSY);
+ error = EBUSY;
goto out_unlock;
}