diff options
| author | Jane Chu <jane.chu@oracle.com> | 2025-11-11 13:26:06 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-11-26 15:18:13 +0100 |
| commit | 2467f9928c9824e52718f977009ed3a0cee83dc5 (patch) | |
| tree | 4772bb43df95a3d9ede4bcaf5fc05e40f7e40fda /fs/kernfs/mount.c | |
| parent | d3d25f430cadc59d42965f54f54a8c0050931860 (diff) | |
fs/kernfs: raise sb->maxbytes to MAX_LFS_FILESIZE
On an ARM64 A1 system, it's possible to have physical memory span
up to the 64T boundary, like below
$ lsmem -b -r -n -o range,size
0x0000000080000000-0x00000000bfffffff 1073741824
0x0000080000000000-0x000008007fffffff 2147483648
0x00000800c0000000-0x0000087fffffffff 546534588416
0x0000400000000000-0x00004000bfffffff 3221225472
0x0000400100000000-0x0000407fffffffff 545460846592
So it's time to extend /sys/kernel/mm/page_idle/bitmap to be able
to account for >2G number of pages, by raising the kernfs file size
limit.
Signed-off-by: Jane Chu <jane.chu@oracle.com>
Link: https://patch.msgid.link/20251111202606.1505437-1-jane.chu@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/kernfs/mount.c')
| -rw-r--r-- | fs/kernfs/mount.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c index 76eaf64b9d9e..3ac52e141766 100644 --- a/fs/kernfs/mount.c +++ b/fs/kernfs/mount.c @@ -298,6 +298,7 @@ static int kernfs_fill_super(struct super_block *sb, struct kernfs_fs_context *k if (info->root->flags & KERNFS_ROOT_SUPPORT_EXPORTOP) sb->s_export_op = &kernfs_export_ops; sb->s_time_gran = 1; + sb->s_maxbytes = MAX_LFS_FILESIZE; /* sysfs dentries and inodes don't require IO to create */ sb->s_shrink->seeks = 0; |