From: Thomas Weißschuh Date: Wed, 28 Sep 2022 10:45:35 +0000 (+0200) Subject: tmpfs: ensure O_LARGEFILE with generic_file_open() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a5454f95246aa1d3527ef5e128cd3a10bc8371de;p=linux.git tmpfs: ensure O_LARGEFILE with generic_file_open() Without this check open() will open large files on tmpfs although O_LARGEFILE was not specified. This is inconsistent with other filesystems. Also it will later result in EOVERFLOW on stat() or EFBIG on write(). Link: https://lore.kernel.org/lkml/76bedae6-22ea-4abc-8c06-b424ceb39217@t-8ch.de/ Link: https://lkml.kernel.org/r/20220928104535.61186-1-linux@weissschuh.net Signed-off-by: Thomas Weißschuh Acked-by: Hugh Dickins Signed-off-by: Andrew Morton --- diff --git a/mm/shmem.c b/mm/shmem.c index 57d878b6391d8..0a7c4a748811d 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -3902,6 +3902,7 @@ EXPORT_SYMBOL(shmem_aops); static const struct file_operations shmem_file_operations = { .mmap = shmem_mmap, + .open = generic_file_open, .get_unmapped_area = shmem_get_unmapped_area, #ifdef CONFIG_TMPFS .llseek = shmem_file_llseek,