From b485275f1aca8a9da37fd35e4fad673935e827da Mon Sep 17 00:00:00 2001 From: Marc Dionne Date: Thu, 21 Nov 2019 15:37:26 +0000 Subject: afs: Fix large file support By default s_maxbytes is set to MAX_NON_LFS, which limits the usable file size to 2GB, enforced by the vfs. Commit b9b1f8d5930a ("AFS: write support fixes") added support for the 64-bit fetch and store server operations, but did not change this value. As a result, attempts to write past the 2G mark result in EFBIG errors: $ dd if=/dev/zero of=foo bs=1M count=1 seek=2048 dd: error writing 'foo': File too large Set s_maxbytes to MAX_LFS_FILESIZE. Fixes: b9b1f8d5930a ("AFS: write support fixes") Signed-off-by: Marc Dionne Signed-off-by: David Howells Signed-off-by: Linus Torvalds --- fs/afs/super.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/afs/super.c b/fs/afs/super.c index f18911e8d770..488641b1a418 100644 --- a/fs/afs/super.c +++ b/fs/afs/super.c @@ -435,6 +435,7 @@ static int afs_fill_super(struct super_block *sb, struct afs_fs_context *ctx) /* fill in the superblock */ sb->s_blocksize = PAGE_SIZE; sb->s_blocksize_bits = PAGE_SHIFT; + sb->s_maxbytes = MAX_LFS_FILESIZE; sb->s_magic = AFS_FS_MAGIC; sb->s_op = &afs_super_ops; if (!as->dyn_root) -- cgit v1.2.3-59-g8ed1b