procfs uses seq_file's operations to process IO, and seq_file uses PAGE_SIZE as basic operating unit, so, fix to update .s_blocksize and .s_blocksize_bits from 1024 and 10 to PAGE_SIZE and PAGE_SHIFT. Signed-off-by: Chao Yu <chao@xxxxxxxxxx> --- v2: - fix to update blocksize to PAGE_SIZE pointed out by Alexey Dobriyan. fs/proc/root.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/proc/root.c b/fs/proc/root.c index 3c2ee3eb1138..8bf5a9080adc 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -173,8 +173,8 @@ static int proc_fill_super(struct super_block *s, struct fs_context *fc) /* User space would break if executables or devices appear on proc */ s->s_iflags |= SB_I_USERNS_VISIBLE | SB_I_NOEXEC | SB_I_NODEV; s->s_flags |= SB_NODIRATIME | SB_NOSUID | SB_NOEXEC; - s->s_blocksize = 1024; - s->s_blocksize_bits = 10; + s->s_blocksize = PAGE_SIZE; + s->s_blocksize_bits = PAGE_SHIFT; s->s_magic = PROC_SUPER_MAGIC; s->s_op = &proc_sops; s->s_time_gran = 1; -- 2.36.1
