Messages in this thread Patch in this message | | | Date | Sat, 27 Nov 2010 17:24:21 +0200 | From | Alexey Dobriyan <> | Subject | [PATCH] proc: less LOCK/UNLOCK in remove_proc_entry() |
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For the common case, when proc entry is being removed and nobody is in the process of using it, save LOCK/UNLOCK pair.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> ---
fs/proc/generic.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
--- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -834,12 +834,9 @@ void remove_proc_entry(const char *name, struct proc_dir_entry *parent) wait_for_completion(de->pde_unload_completion); - goto continue_removing; + spin_lock(&de->pde_unload_lock); } - spin_unlock(&de->pde_unload_lock); -continue_removing: - spin_lock(&de->pde_unload_lock); while (!list_empty(&de->pde_openers)) { struct pde_opener *pdeo;
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