Thanks for your comments.
The following patch disables loading of f2fs module on architectures
which have PAGE_SIZE > 4096 , since it is impossible to mount f2fs on
such architectures , log messages are:
# mount -t f2fs /dev/vdiskb1 /mnt
mount: /mnt: wrong fs type, bad option, bad superblock on
/dev/vdiskb1, missing codepage or helper program, or other error.
# file -s /dev/vdiskb1
/dev/vdiskb1: F2FS filesystem,
UUID=1d8b9ca4-2389-4910-af3b-10998969f09c, volume name ""
May 15 18:03:13 ttip kernel: F2FS-fs (vdiskb1): Invalid
page_cache_size (8192), supports only 4KB
May 15 18:03:13 ttip kernel: F2FS-fs (vdiskb1): Can't find valid F2FS
filesystem in 1th superblock
May 15 18:03:13 ttip kernel: F2FS-fs (vdiskb1): Invalid
page_cache_size (8192), supports only 4KB
May 15 18:03:13 ttip kernel: F2FS-fs (vdiskb1): Can't find valid F2FS
filesystem in 2th superblock
May 15 18:03:13 ttip kernel: F2FS-fs (vdiskb1): Invalid
page_cache_size (8192), supports only 4KB
which was introduced by git commit 5c9b469295fb6b10d98923eab5e79c4edb80ed20
tested on git kernel 4.17.0-rc6-00309-gec30dcf7f425
with patch applied:
# modprobe f2fs
modprobe: ERROR: could not insert 'f2fs': Invalid argument
# journalctl -e -k
May 28 01:40:28 v215 kernel: F2FS not supported on PAGE_SIZE(8192) != 4096
v2 changes:
- compare page size to f2fs BLKSIZE
- print current page size on error
Signed-off-by: Anatoly Pugachev <mator...@gmail.com>
---
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 42d564c5ccd0..fd9868f8ed4d 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3063,6 +3063,12 @@ static int __init init_f2fs_fs(void)
{
int err;
+ if (PAGE_SIZE != F2FS_BLKSIZE) {
+ printk("F2FS not supported on PAGE_SIZE(%lu) != %d\n",
+ PAGE_SIZE, F2FS_BLKSIZE);
+ return -EINVAL;
+ }
+
f2fs_build_trace_ios();
err = init_inodecache();
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