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authorLinus Torvalds <torvalds@linux-foundation.org>2016-03-25 23:59:11 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-25 23:59:11 (GMT)
commit606c61a0579669c292dc5f5e1cf898edecfc0d53 (patch)
tree569aa7e9b99571890bfccd7278bbc303cfa0a919 /fs/ocfs2/alloc.c
parent15dbc136dff62ebefb03353cfb7d308d49b275f3 (diff)
parent0fda2788b03c1868e2f20b3b7995b8cc2adf4715 (diff)
downloadlinux-606c61a0579669c292dc5f5e1cf898edecfc0d53.tar.xz
Merge branch 'akpm' (patches from Andrew)
Merge fourth patch-bomb from Andrew Morton: "A lot more stuff than expected, sorry. A bunch of ocfs2 reviewing was finished off. - mhocko's oom-reaper out-of-memory-handler changes - ocfs2 fixes and features - KASAN feature work - various fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (42 commits) thp: fix typo in khugepaged_scan_pmd() MAINTAINERS: fill entries for KASAN mm/filemap: generic_file_read_iter(): check for zero reads unconditionally kasan: test fix: warn if the UAF could not be detected in kmalloc_uaf2 mm, kasan: stackdepot implementation. Enable stackdepot for SLAB arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections mm, kasan: add GFP flags to KASAN API mm, kasan: SLAB support kasan: modify kmalloc_large_oob_right(), add kmalloc_pagealloc_oob_right() include/linux/oom.h: remove undefined oom_kills_count()/note_oom_kill() mm/page_alloc: prevent merging between isolated and other pageblocks drivers/memstick/host/r592.c: avoid gcc-6 warning ocfs2: extend enough credits for freeing one truncate record while replaying truncate records ocfs2: extend transaction for ocfs2_remove_rightmost_path() and ocfs2_update_edge_lengths() before to avoid inconsistency between inode and et ocfs2/dlm: move lock to the tail of grant queue while doing in-place convert ocfs2: solve a problem of crossing the boundary in updating backups ocfs2: fix occurring deadlock by changing ocfs2_wq from global to local ocfs2/dlm: fix BUG in dlm_move_lockres_to_recovery_list ocfs2/dlm: fix race between convert and recovery ocfs2: fix a deadlock issue in ocfs2_dio_end_io_write() ...
Diffstat (limited to 'fs/ocfs2/alloc.c')
-rw-r--r--fs/ocfs2/alloc.c105
1 files changed, 64 insertions, 41 deletions
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index d002579..70907d6 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -2516,21 +2516,6 @@ static int ocfs2_update_edge_lengths(handle_t *handle,
struct ocfs2_extent_block *eb;
u32 range;
- /*
- * In normal tree rotation process, we will never touch the
- * tree branch above subtree_index and ocfs2_extend_rotate_transaction
- * doesn't reserve the credits for them either.
- *
- * But we do have a special case here which will update the rightmost
- * records for all the bh in the path.
- * So we have to allocate extra credits and access them.
- */
- ret = ocfs2_extend_trans(handle, subtree_index);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
ret = ocfs2_journal_access_path(et->et_ci, handle, path);
if (ret) {
mlog_errno(ret);
@@ -2956,7 +2941,7 @@ static int __ocfs2_rotate_tree_left(handle_t *handle,
right_path->p_node[subtree_root].bh->b_blocknr,
right_path->p_tree_depth);
- ret = ocfs2_extend_rotate_transaction(handle, subtree_root,
+ ret = ocfs2_extend_rotate_transaction(handle, 0,
orig_credits, left_path);
if (ret) {
mlog_errno(ret);
@@ -3029,21 +3014,9 @@ static int ocfs2_remove_rightmost_path(handle_t *handle,
struct ocfs2_extent_block *eb;
struct ocfs2_extent_list *el;
-
ret = ocfs2_et_sanity_check(et);
if (ret)
goto out;
- /*
- * There's two ways we handle this depending on
- * whether path is the only existing one.
- */
- ret = ocfs2_extend_rotate_transaction(handle, 0,
- handle->h_buffer_credits,
- path);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
ret = ocfs2_journal_access_path(et->et_ci, handle, path);
if (ret) {
@@ -3641,6 +3614,14 @@ static int ocfs2_merge_rec_left(struct ocfs2_path *right_path,
*/
if (le16_to_cpu(right_rec->e_leaf_clusters) == 0 &&
le16_to_cpu(el->l_next_free_rec) == 1) {
+ /* extend credit for ocfs2_remove_rightmost_path */
+ ret = ocfs2_extend_rotate_transaction(handle, 0,
+ handle->h_buffer_credits,
+ right_path);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
ret = ocfs2_remove_rightmost_path(handle, et,
right_path,
@@ -3679,6 +3660,14 @@ static int ocfs2_try_to_merge_extent(handle_t *handle,
BUG_ON(ctxt->c_contig_type == CONTIG_NONE);
if (ctxt->c_split_covers_rec && ctxt->c_has_empty_extent) {
+ /* extend credit for ocfs2_remove_rightmost_path */
+ ret = ocfs2_extend_rotate_transaction(handle, 0,
+ handle->h_buffer_credits,
+ path);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
/*
* The merge code will need to create an empty
* extent to take the place of the newly
@@ -3727,6 +3716,15 @@ static int ocfs2_try_to_merge_extent(handle_t *handle,
*/
BUG_ON(!ocfs2_is_empty_extent(&el->l_recs[0]));
+ /* extend credit for ocfs2_remove_rightmost_path */
+ ret = ocfs2_extend_rotate_transaction(handle, 0,
+ handle->h_buffer_credits,
+ path);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
/* The merge left us with an empty extent, remove it. */
ret = ocfs2_rotate_tree_left(handle, et, path, dealloc);
if (ret) {
@@ -3748,6 +3746,15 @@ static int ocfs2_try_to_merge_extent(handle_t *handle,
goto out;
}
+ /* extend credit for ocfs2_remove_rightmost_path */
+ ret = ocfs2_extend_rotate_transaction(handle, 0,
+ handle->h_buffer_credits,
+ path);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
ret = ocfs2_rotate_tree_left(handle, et, path, dealloc);
/*
* Error from this last rotate is not critical, so
@@ -3783,6 +3790,16 @@ static int ocfs2_try_to_merge_extent(handle_t *handle,
}
if (ctxt->c_split_covers_rec) {
+ /* extend credit for ocfs2_remove_rightmost_path */
+ ret = ocfs2_extend_rotate_transaction(handle, 0,
+ handle->h_buffer_credits,
+ path);
+ if (ret) {
+ mlog_errno(ret);
+ ret = 0;
+ goto out;
+ }
+
/*
* The merge may have left an empty extent in
* our leaf. Try to rotate it away.
@@ -5342,6 +5359,15 @@ static int ocfs2_truncate_rec(handle_t *handle,
struct ocfs2_extent_block *eb;
if (ocfs2_is_empty_extent(&el->l_recs[0]) && index > 0) {
+ /* extend credit for ocfs2_remove_rightmost_path */
+ ret = ocfs2_extend_rotate_transaction(handle, 0,
+ handle->h_buffer_credits,
+ path);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
ret = ocfs2_rotate_tree_left(handle, et, path, dealloc);
if (ret) {
mlog_errno(ret);
@@ -5928,16 +5954,6 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb,
ocfs2_journal_dirty(handle, tl_bh);
- /* TODO: Perhaps we can calculate the bulk of the
- * credits up front rather than extending like
- * this. */
- status = ocfs2_extend_trans(handle,
- OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC);
- if (status < 0) {
- mlog_errno(status);
- goto bail;
- }
-
rec = tl->tl_recs[i];
start_blk = ocfs2_clusters_to_blocks(data_alloc_inode->i_sb,
le32_to_cpu(rec.t_start));
@@ -5958,6 +5974,13 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb,
goto bail;
}
}
+
+ status = ocfs2_extend_trans(handle,
+ OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC);
+ if (status < 0) {
+ mlog_errno(status);
+ goto bail;
+ }
i--;
}
@@ -6016,7 +6039,7 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
goto out_mutex;
}
- handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_UPDATE);
+ handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
@@ -6079,7 +6102,7 @@ void ocfs2_schedule_truncate_log_flush(struct ocfs2_super *osb,
if (cancel)
cancel_delayed_work(&osb->osb_truncate_log_wq);
- queue_delayed_work(ocfs2_wq, &osb->osb_truncate_log_wq,
+ queue_delayed_work(osb->ocfs2_wq, &osb->osb_truncate_log_wq,
OCFS2_TRUNCATE_LOG_FLUSH_INTERVAL);
}
}
@@ -6253,7 +6276,7 @@ void ocfs2_truncate_log_shutdown(struct ocfs2_super *osb)
if (tl_inode) {
cancel_delayed_work(&osb->osb_truncate_log_wq);
- flush_workqueue(ocfs2_wq);
+ flush_workqueue(osb->ocfs2_wq);
status = ocfs2_flush_truncate_log(osb);
if (status < 0)