From: Al Viro Date: Mon, 24 Feb 2025 03:14:47 +0000 (-0500) Subject: ramfs, hugetlbfs, mqueue: set DCACHE_DONTCACHE X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3333ed35b83dc69aa678943da97b3dcc84d75aab;p=thirdparty%2Flinux.git ramfs, hugetlbfs, mqueue: set DCACHE_DONTCACHE makes simple_lookup() slightly cheaper there - no need for simple_lookup() to set the flag and we want it on everything on those anyway. Reviewed-by: Christian Brauner Signed-off-by: Al Viro --- diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index e4de5425838d9..6e0ade365a334 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -1433,6 +1433,7 @@ hugetlbfs_fill_super(struct super_block *sb, struct fs_context *fc) sb->s_blocksize_bits = huge_page_shift(ctx->hstate); sb->s_magic = HUGETLBFS_MAGIC; sb->s_op = &hugetlbfs_ops; + sb->s_d_flags = DCACHE_DONTCACHE; sb->s_time_gran = 1; /* diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c index 775fa905fda00..f8874c3b8c1e9 100644 --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c @@ -269,6 +269,7 @@ static int ramfs_fill_super(struct super_block *sb, struct fs_context *fc) sb->s_blocksize_bits = PAGE_SHIFT; sb->s_magic = RAMFS_MAGIC; sb->s_op = &ramfs_ops; + sb->s_d_flags = DCACHE_DONTCACHE; sb->s_time_gran = 1; inode = ramfs_get_inode(sb, NULL, S_IFDIR | fsi->mount_opts.mode, 0); diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 82ed2d3c98463..482af449e00da 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -411,6 +411,7 @@ static int mqueue_fill_super(struct super_block *sb, struct fs_context *fc) sb->s_blocksize_bits = PAGE_SHIFT; sb->s_magic = MQUEUE_MAGIC; sb->s_op = &mqueue_super_ops; + sb->s_d_flags = DCACHE_DONTCACHE; inode = mqueue_get_inode(sb, ns, S_IFDIR | S_ISVTX | S_IRWXUGO, NULL); if (IS_ERR(inode))