From: Alexey Dobriyan <adobriyan@xxxxxxxxx> Subject: proc: kmalloc struct pde_opener 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. Link: http://lkml.kernel.org/r/20161029155747.GC1246@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/proc/inode.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff -puN fs/proc/inode.c~proc-kmalloc-struct-pde_opener fs/proc/inode.c --- a/fs/proc/inode.c~proc-kmalloc-struct-pde_opener +++ a/fs/proc/inode.c @@ -321,7 +321,7 @@ static int proc_reg_open(struct inode *i * 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 *i 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); _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
