From 053c525fcf976810f023d96472f414c0d5e6339b Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 8 Apr 2009 13:44:08 +0200 Subject: [PATCH] buffer: switch do_emergency_thaw() away from pdflush_operation() This is (again) a preparatory patch similar to commit a2a9537ac0b37a5da6fbe7e1e9cb06c524d2a9c4. It open codes a simple async way of executing do_thaw_all() out of context, so we can get rid of pdflush. Signed-off-by: Jens Axboe --- fs/buffer.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index 13edf7ad3ff1..ff8bb1f2333a 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -547,7 +547,7 @@ repeat: return err; } -void do_thaw_all(unsigned long unused) +void do_thaw_all(struct work_struct *work) { struct super_block *sb; char b[BDEVNAME_SIZE]; @@ -567,6 +567,7 @@ restart: goto restart; } spin_unlock(&sb_lock); + kfree(work); printk(KERN_WARNING "Emergency Thaw complete\n"); } @@ -577,7 +578,13 @@ restart: */ void emergency_thaw_all(void) { - pdflush_operation(do_thaw_all, 0); + struct work_struct *work; + + work = kmalloc(sizeof(*work), GFP_ATOMIC); + if (work) { + INIT_WORK(work, do_thaw_all); + schedule_work(work); + } } /**