} while (bh);
tail->b_this_page = head;
attach_page_buffers(page, head);
- BUG_ON(!page_has_buffers(page));
}
bh = head = page_buffers(page);
BUG_ON(!bh);
LCN lcn;
unsigned int vcn_ofs;
+ bh->b_bdev = vol->sb->s_bdev;
/* Obtain the vcn and offset of the current block. */
vcn = ((VCN)mft_no << vol->mft_record_size_bits) +
(block_start - m_start);
*/
if (!NInoTestClearDirty(ni))
goto done;
- BUG_ON(!page_has_buffers(page));
bh = head = page_buffers(page);
BUG_ON(!bh);
rl = NULL;
LCN lcn;
unsigned int vcn_ofs;
+ bh->b_bdev = vol->sb->s_bdev;
/* Obtain the vcn and offset of the current block. */
vcn = ((VCN)ni->mft_no << vol->mft_record_size_bits) +
(block_start - m_start);
na.name_len = 0;
na.type = AT_UNUSED;
/*
- * For inode 0, i.e. $MFT itself, we cannot use ilookup5() from here or
- * we deadlock because the inode is already locked by the kernel
- * (fs/fs-writeback.c::__sync_single_inode()) and ilookup5() waits
- * until the inode is unlocked before returning it and it never gets
- * unlocked because ntfs_should_write_mft_record() never returns. )-:
- * Fortunately, we have inode 0 pinned in icache for the duration of
- * the mount so we can access it directly.
+ * Optimize inode 0, i.e. $MFT itself, since we have it in memory and
+ * we get here for it rather often.
*/
if (!mft_no) {
/* Balance the below iput(). */
vi = igrab(mft_vi);
BUG_ON(vi != mft_vi);
- } else
- vi = ilookup5(sb, mft_no, (test_t)ntfs_test_inode, &na);
+ } else {
+ /*
+ * Have to use ilookup5_nowait() since ilookup5() waits for the
+ * inode lock which causes ntfs to deadlock when a concurrent
+ * inode write via the inode dirty code paths and the page
+ * dirty code path of the inode dirty code path when writing
+ * $MFT occurs.
+ */
+ vi = ilookup5_nowait(sb, mft_no, (test_t)ntfs_test_inode, &na);
+ }
if (vi) {
ntfs_debug("Base inode 0x%lx is in icache.", mft_no);
/* The inode is in icache. */
na.mft_no = MREF_LE(m->base_mft_record);
ntfs_debug("Mft record 0x%lx is an extent record. Looking for base "
"inode 0x%lx in icache.", mft_no, na.mft_no);
- vi = ilookup5(sb, na.mft_no, (test_t)ntfs_test_inode, &na);
+ if (!na.mft_no) {
+ /* Balance the below iput(). */
+ vi = igrab(mft_vi);
+ BUG_ON(vi != mft_vi);
+ } else
+ vi = ilookup5_nowait(sb, na.mft_no, (test_t)ntfs_test_inode,
+ &na);
if (!vi) {
/*
* The base inode is not in icache, write this extent mft
BUG_ON(ll < rl2->vcn);
BUG_ON(ll >= rl2->vcn + rl2->length);
/* Get the size for the new mapping pairs array for this extent. */
- mp_size = ntfs_get_size_for_mapping_pairs(vol, rl2, ll);
+ mp_size = ntfs_get_size_for_mapping_pairs(vol, rl2, ll, -1);
if (unlikely(mp_size <= 0)) {
ntfs_error(vol->sb, "Get size for mapping pairs failed for "
"mft bitmap attribute extent.");
/* Generate the mapping pairs array directly into the attr record. */
ret = ntfs_mapping_pairs_build(vol, (u8*)a +
le16_to_cpu(a->data.non_resident.mapping_pairs_offset),
- mp_size, rl2, ll, NULL);
+ mp_size, rl2, ll, -1, NULL);
if (unlikely(ret)) {
ntfs_error(vol->sb, "Failed to build mapping pairs array for "
"mft bitmap attribute.");
a->data.non_resident.mapping_pairs_offset),
old_alen - le16_to_cpu(
a->data.non_resident.mapping_pairs_offset),
- rl2, ll, NULL)) {
+ rl2, ll, -1, NULL)) {
ntfs_error(vol->sb, "Failed to restore mapping pairs "
"array.%s", es);
NVolSetErrors(vol);
BUG_ON(ll < rl2->vcn);
BUG_ON(ll >= rl2->vcn + rl2->length);
/* Get the size for the new mapping pairs array for this extent. */
- mp_size = ntfs_get_size_for_mapping_pairs(vol, rl2, ll);
+ mp_size = ntfs_get_size_for_mapping_pairs(vol, rl2, ll, -1);
if (unlikely(mp_size <= 0)) {
ntfs_error(vol->sb, "Get size for mapping pairs failed for "
"mft data attribute extent.");
/* Generate the mapping pairs array directly into the attr record. */
ret = ntfs_mapping_pairs_build(vol, (u8*)a +
le16_to_cpu(a->data.non_resident.mapping_pairs_offset),
- mp_size, rl2, ll, NULL);
+ mp_size, rl2, ll, -1, NULL);
if (unlikely(ret)) {
ntfs_error(vol->sb, "Failed to build mapping pairs array of "
"mft data attribute.");
a = ctx->attr;
a->data.non_resident.highest_vcn = cpu_to_sle64(old_last_vcn - 1);
undo_alloc:
- if (ntfs_cluster_free(vol->mft_ino, old_last_vcn, -1) < 0) {
+ if (ntfs_cluster_free(vol->mft_ino, old_last_vcn, -1, TRUE) < 0) {
ntfs_error(vol->sb, "Failed to free clusters from mft data "
"attribute.%s", es);
NVolSetErrors(vol);
a->data.non_resident.mapping_pairs_offset),
old_alen - le16_to_cpu(
a->data.non_resident.mapping_pairs_offset),
- rl2, ll, NULL)) {
+ rl2, ll, -1, NULL)) {
ntfs_error(vol->sb, "Failed to restore mapping pairs "
"array.%s", es);
NVolSetErrors(vol);