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| author | Andreas Gruenbacher <agruenba@redhat.com> | 2015-10-29 10:58:09 -0500 |
|---|---|---|
| committer | Bob Peterson <rpeterso@redhat.com> | 2015-10-29 12:57:48 -0500 |
| commit | f3dd1649122b9e73f869e5304d5fa8554e128b7a (patch) | |
| tree | d6e75c45ea5250f7dc483c51b08cd1b78f40fa1d /Documentation/filesystems | |
| parent | 491e94f790982bec5a1334dd3db2708de3724bdf (diff) | |
| download | lwn-f3dd1649122b9e73f869e5304d5fa8554e128b7a.tar.gz lwn-f3dd1649122b9e73f869e5304d5fa8554e128b7a.zip | |
gfs2: Remove gl_spin define
Commit e66cf161 replaced the gl_spin spinlock in struct gfs2_glock with a
gl_lockref lockref and defined gl_spin as gl_lockref.lock (the spinlock in
gl_lockref). Remove that define to make the references to gl_lockref.lock more
obvious.
Signed-off-by: Andreas Gruenbacher <andreas.gruenbacher@gmail.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/gfs2-glocks.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/filesystems/gfs2-glocks.txt b/Documentation/filesystems/gfs2-glocks.txt index fcc79957be63..1fb12f9dfe48 100644 --- a/Documentation/filesystems/gfs2-glocks.txt +++ b/Documentation/filesystems/gfs2-glocks.txt @@ -5,7 +5,7 @@ This documents the basic principles of the glock state machine internals. Each glock (struct gfs2_glock in fs/gfs2/incore.h) has two main (internal) locks: - 1. A spinlock (gl_spin) which protects the internal state such + 1. A spinlock (gl_lockref.lock) which protects the internal state such as gl_state, gl_target and the list of holders (gl_holders) 2. A non-blocking bit lock, GLF_LOCK, which is used to prevent other threads from making calls to the DLM, etc. at the same time. If a @@ -82,8 +82,8 @@ rather than via the glock. Locking rules for glock operations: -Operation | GLF_LOCK bit lock held | gl_spin spinlock held ------------------------------------------------------------------ +Operation | GLF_LOCK bit lock held | gl_lockref.lock spinlock held +------------------------------------------------------------------------- go_xmote_th | Yes | No go_xmote_bh | Yes | No go_inval | Yes | No |