X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-linux.git;a=blobdiff_plain;f=Documentation%2Ffilesystems%2Fgfs2-glocks.txt;h=1fb12f9dfe4877fb5a37744b1298d4b464aa74c6;hp=fcc79957be63ef6c7110f78e83c50b00d24dcecd;hb=0442c56913b88ffc93f47b5179de22e5b354a750;hpb=4564747649db987722aa781280eb8325c6a5a1a8 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