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| author | Richard Weinberger <richard@nod.at> | 2018-08-13 15:14:45 +0200 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2018-08-15 00:25:20 +0200 |
| commit | 49d2e05fb474718804cd3d1ec1e07213ecffc040 (patch) | |
| tree | fc3d47cfd76a06021054c4c50ce14cf4b82eab5f | |
| parent | ubifs: introduce Kconfig symbol for xattr support (diff) | |
| download | linux-49d2e05fb474718804cd3d1ec1e07213ecffc040.tar.xz linux-49d2e05fb474718804cd3d1ec1e07213ecffc040.zip | |
ubifs: Add comment on c->commit_sem
Every single time I come across that code, I get confused
because it looks like a possible dead lock.
Help myself by adding a comment.
Signed-off-by: Richard Weinberger <richard@nod.at>
| -rw-r--r-- | fs/ubifs/journal.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c index c83041891cef..c5d9c6136057 100644 --- a/fs/ubifs/journal.c +++ b/fs/ubifs/journal.c @@ -317,6 +317,7 @@ again: down_read(&c->commit_sem); err = reserve_space(c, jhead, len); if (!err) + /* c->commit_sem will get released via finish_reservation(). */ return 0; up_read(&c->commit_sem); |