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| author |   Filipe Manana <fdmanana@suse.com> | 2014-07-02 20:07:54 +0100 |
|---|---|---|
| committer |   Chris Mason <clm@fb.com> | 2014-08-15 07:43:13 -0700 |
| commit | 6f7ff6d7832c6be13e8c95598884dbc40ad69fb7 (patch) | |
| tree | 77cfeb9532c7eb15a9d6a1c880066e49e24a9e96 /tools/perf/builtin-annotate.c | |
| parent | Btrfs: __btrfs_mod_ref should always use no_quota (diff) | |
| download | wireguard-linux-6f7ff6d7832c6be13e8c95598884dbc40ad69fb7.tar.xz wireguard-linux-6f7ff6d7832c6be13e8c95598884dbc40ad69fb7.zip | |
Btrfs: read lock extent buffer while walking backrefs
Before processing the extent buffer, acquire a read lock on it, so
that we're safe against concurrent updates on the extent buffer.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
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