lkml.org 
[lkml]   [2022]   [Sep]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] tmpfs: ensure O_LARGEFILE with generic_file_open()
Date
From: Thomas Weißschuh <thomas.weissschuh@amadeus.com>

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/
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@amadeus.com>
---
mm/shmem.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/mm/shmem.c b/mm/shmem.c
index 42e5888bf84d..902c5550fabc 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -3876,6 +3876,7 @@ 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,
base-commit: f76349cf41451c5c42a99f18a9163377e4b364ff
--
2.37.3

\
 
 \ /
  Last update: 2022-09-28 12:56    [W:0.047 / U:0.248 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site