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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-10 05:01:23 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-10 05:01:23 +0300
commit9d74288ca79249af4b906215788b37d52263b58b (patch)
tree868b4dbafb66801a381608fa83d719648b180a16 /Documentation
parent123a28d8b522b03dd97c1f791245924088616ac0 (diff)
parent31dddd9eb9ebae9a2a9b502750e9e481d752180a (diff)
downloadlinux-9d74288ca79249af4b906215788b37d52263b58b.tar.xz
Merge tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Bob Peterson: "Here is a list of patches we've accumulated for GFS2 for the current upstream merge window. There are only six patches this time: 1. A cleanup patch from Andreas to remove the gl_spin #define in favor of its value for the sake of clarity. 2. A fix from Andy Price to mark the inode dirty during fallocate. 3. A fix from Andy Price to set s_mode on mount failures to prevent a stack trace. 4 A patch from me to prevent a kernel BUG() in trans_add_meta/trans_add_data due to uninitialized storage. 5. A patch from me to protecting our freeing of the in-core directory hash table to prevent double-free. 6. A fix for a page/block rounding problem that resulted in a metadata coherency problem when the block size != page size" I've got a lot more patches in various stages of review and testing, but I'm afraid they'll have to wait until the next merge window. So next time we're likely to have a lot more" * tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: GFS2: Fix rgrp end rounding problem for bsize < page size GFS2: Protect freeing directory hash table with i_lock spin_lock gfs2: Remove gl_spin define gfs2: Add missing else in trans_add_meta/data GFS2: Set s_mode before parsing mount options GFS2: fallocate: do not rely on file_update_time to mark the inode dirty
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/gfs2-glocks.txt6
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