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| author | Martin Ågren <martin.agren@gmail.com> | 2018-05-09 22:55:38 +0200 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2018-05-10 14:54:45 +0900 |
| commit | b227586831ed393e1d60629bfedcef01be4b9c22 (patch) | |
| tree | c58f4d54e1818bf4969d77840f47e893cee7b4de /builtin/merge.c | |
| parent | 3c6fad4a3fcc9a01dd3d9678360907271ad85920 (diff) | |
| download | git-b227586831ed393e1d60629bfedcef01be4b9c22.tar.gz | |
lock_file: make function-local locks non-static
Placing `struct lock_file`s on the stack used to be a bad idea, because
the temp- and lockfile-machinery would keep a pointer into the struct.
But after 076aa2cbd (tempfile: auto-allocate tempfiles on heap,
2017-09-05), we can safely have lockfiles on the stack. (This applies
even if a user returns early, leaving a locked lock behind.)
These `struct lock_file`s are local to their respective functions and we
can drop their staticness.
For good measure, I have inspected these sites and come to believe that
they always release the lock, with the possible exception of bailing out
using `die()` or `exit()` or by returning from a `cmd_foo()`.
As pointed out by Jeff King, it would be bad if someone held on to a
`struct lock_file *` for some reason. After some grepping, I agree with
his findings: no-one appears to be doing that.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/merge.c')
| -rw-r--r-- | builtin/merge.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/builtin/merge.c b/builtin/merge.c index ee050a47f3..5be978fe72 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -647,7 +647,7 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common, struct commit_list *remoteheads, struct commit *head) { - static struct lock_file lock; + struct lock_file lock = LOCK_INIT; const char *head_arg = "HEAD"; hold_locked_index(&lock, LOCK_DIE_ON_ERROR); @@ -805,7 +805,7 @@ static int merge_trivial(struct commit *head, struct commit_list *remoteheads) { struct object_id result_tree, result_commit; struct commit_list *parents, **pptr = &parents; - static struct lock_file lock; + struct lock_file lock = LOCK_INIT; hold_locked_index(&lock, LOCK_DIE_ON_ERROR); refresh_cache(REFRESH_QUIET); |