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authorMarc Dionne <marc.dionne@auristor.com>2019-11-21 15:37:26 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2019-11-22 14:19:26 -0800
commitb485275f1aca8a9da37fd35e4fad673935e827da (patch)
treece3ca0369d5452abc475e136734898ad514f1cc7
parentafs: Fix possible assert with callbacks from yfs servers (diff)
downloadlinux-dev-b485275f1aca8a9da37fd35e4fad673935e827da.tar.xz
linux-dev-b485275f1aca8a9da37fd35e4fad673935e827da.zip
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 <marc.dionne@auristor.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/afs/super.c1
1 files changed, 1 insertions, 0 deletions
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)