The patch titled
introduce write_trylock_irqsave()
has been added to the -mm tree. Its filename is
introduce-write_trylock_irqsave.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: introduce write_trylock_irqsave()
From: Satyam Sharma <ssatyam@xxxxxxxxxxxxxx>
Introduce a write_trylock_irqsave() implementation. Similar in style to
the implementation of spin_trylock_irqsave() in mainline.
Signed-off-by: Satyam Sharma <ssatyam@xxxxxxxxxxxxxx>
Cc: Sripathi Kodi <sripathik@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/spinlock.h | 7 +++++++
1 files changed, 7 insertions(+)
diff -puN include/linux/spinlock.h~introduce-write_trylock_irqsave include/linux/spinlock.h
--- a/include/linux/spinlock.h~introduce-write_trylock_irqsave
+++ a/include/linux/spinlock.h
@@ -282,6 +282,13 @@ do { \
1 : ({ local_irq_restore(flags); 0; }); \
})
+#define write_trylock_irqsave(lock, flags) \
+({ \
+ local_irq_save(flags); \
+ write_trylock(lock) ? \
+ 1 : ({ local_irq_restore(flags); 0; }); \
+})
+
/*
* Locks two spinlocks l1 and l2.
* l1_first indicates if spinlock l1 should be taken first.
_
Patches currently in -mm which might be from ssatyam@xxxxxxxxxxxxxx are
git-gfs2-nmw.patch
drivers-message-i2o-devicec-remove-redundant-gfp_atomic-from-kmalloc.patch
drivers-scsi-aic7xxx_oldc-remove-redundant-gfp_atomic-from-kmalloc.patch
introduce-write_trylock_irqsave.patch
-
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