From: Alexey Dobriyan <adobriyan@gmail.com>
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 3/4] proc: kmalloc struct pde_opener
Date: Sat, 29 Oct 2016 18:57:47 +0300 [thread overview]
Message-ID: <20161029155747.GC1246@avx2> (raw)
kzalloc is too much, half of the fields will be reinitialized anyway.
If proc file doesn't have ->release hook (some still do not), clearing
is unnecessary because it will be freed immediately.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---
fs/proc/inode.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -321,7 +321,7 @@ static int proc_reg_open(struct inode *inode, struct file *file)
* by hand in remove_proc_entry(). For this, save opener's credentials
* for later.
*/
- pdeo = kzalloc(sizeof(struct pde_opener), GFP_KERNEL);
+ pdeo = kmalloc(sizeof(struct pde_opener), GFP_KERNEL);
if (!pdeo)
return -ENOMEM;
@@ -338,6 +338,8 @@ static int proc_reg_open(struct inode *inode, struct file *file)
if (rv == 0 && release) {
/* To know what to release. */
pdeo->file = file;
+ pdeo->closing = false;
+ pdeo->c = NULL;
/* Strictly for "too late" ->release in proc_reg_release(). */
spin_lock(&pde->pde_unload_lock);
list_add(&pdeo->lh, &pde->pde_openers);
reply other threads:[~2016-10-29 13:58 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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