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| author | Xue jiufei <xuejiufei@huawei.com> | 2015-06-25 01:55:07 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-25 02:49:39 +0200 |
| commit | 9f99ad08612ac37f3b8847b9b2e6e95a2a81ed4b (patch) | |
| tree | 6907d3f30bfee6983b8f953b52120844ced831ec /fs/ocfs2/alloc.c | |
| parent | ocfs2/dlm: cleanup unused function __dlm_wait_on_lockres_flags_set (diff) | |
| download | linux-9f99ad08612ac37f3b8847b9b2e6e95a2a81ed4b.tar.xz linux-9f99ad08612ac37f3b8847b9b2e6e95a2a81ed4b.zip | |
ocfs2: return error when ocfs2_figure_merge_contig_type() fails
ocfs2_figure_merge_contig_type() still returns CONTIG_NONE when some error
occurs which will cause an unpredictable error. So return a proper errno
when ocfs2_figure_merge_contig_type() fails.
Signed-off-by: joyce.xue <xuejiufei@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/alloc.c')
| -rw-r--r-- | fs/ocfs2/alloc.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 2d7f76e52c37..ea4c822531cc 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -4311,13 +4311,13 @@ out: return ret; } -static enum ocfs2_contig_type -ocfs2_figure_merge_contig_type(struct ocfs2_extent_tree *et, +static int ocfs2_figure_merge_contig_type(struct ocfs2_extent_tree *et, struct ocfs2_path *path, struct ocfs2_extent_list *el, int index, - struct ocfs2_extent_rec *split_rec) + struct ocfs2_extent_rec *split_rec, + struct ocfs2_merge_ctxt *ctxt) { - int status; + int status = 0; enum ocfs2_contig_type ret = CONTIG_NONE; u32 left_cpos, right_cpos; struct ocfs2_extent_rec *rec = NULL; @@ -4336,8 +4336,11 @@ ocfs2_figure_merge_contig_type(struct ocfs2_extent_tree *et, if (left_cpos != 0) { left_path = ocfs2_new_path_from_path(path); - if (!left_path) + if (!left_path) { + status = -ENOMEM; + mlog_errno(status); goto exit; + } status = ocfs2_find_path(et->et_ci, left_path, left_cpos); @@ -4392,8 +4395,11 @@ ocfs2_figure_merge_contig_type(struct ocfs2_extent_tree *et, goto free_left_path; right_path = ocfs2_new_path_from_path(path); - if (!right_path) + if (!right_path) { + status = -ENOMEM; + mlog_errno(status); goto free_left_path; + } status = ocfs2_find_path(et->et_ci, right_path, right_cpos); if (status) @@ -4433,7 +4439,10 @@ free_right_path: free_left_path: ocfs2_free_path(left_path); exit: - return ret; + if (status == 0) + ctxt->c_contig_type = ret; + + return status; } static void ocfs2_figure_contig_type(struct ocfs2_extent_tree *et, @@ -5039,9 +5048,14 @@ int ocfs2_split_extent(handle_t *handle, goto out; } - ctxt.c_contig_type = ocfs2_figure_merge_contig_type(et, path, el, - split_index, - split_rec); + ret = ocfs2_figure_merge_contig_type(et, path, el, + split_index, + split_rec, + &ctxt); + if (ret) { + mlog_errno(ret); + goto out; + } /* * The core merge / split code wants to know how much room is |