ubifs: Add comment on c->commit_sem
authorRichard Weinberger <richard@nod.at>
Mon, 13 Aug 2018 13:14:45 +0000 (15:14 +0200)
committerRichard Weinberger <richard@nod.at>
Tue, 14 Aug 2018 22:25:20 +0000 (00:25 +0200)
commit49d2e05fb474718804cd3d1ec1e07213ecffc040
treefc3d47cfd76a06021054c4c50ce14cf4b82eab5f
parent7e5471ce6dba5f28a3c7afdfe168655d236f677b
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>
fs/ubifs/journal.c