From 06effdbb49af5f6c7d20affaec74603914acc768 Mon Sep 17 00:00:00 2001 From: Bernd Schubert Date: Sun, 18 Mar 2012 22:44:50 -0400 Subject: nfsd: vfs_llseek() with 32 or 64 bit offsets (hashes) Use 32-bit or 64-bit llseek() hashes for directory offsets depending on the NFS version. NFSv2 gets 32-bit hashes only. NOTE: This patch got rather complex as Christoph asked to set the filp->f_mode flag in the open call or immediatly after dentry_open() in nfsd_open() to avoid races. Personally I still do not see a reason for that and in my opinion FMODE_32BITHASH/FMODE_64BITHASH flags could be set nfsd_readdir(), as it follows directly after nfsd_open() without a chance of races. Signed-off-by: Bernd Schubert Signed-off-by: "Theodore Ts'o" Acked-by: J. Bruce Fields --- fs/nfsd/vfs.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/nfsd/vfs.h') diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h index 1dcd238..ec0611b 100644 --- a/fs/nfsd/vfs.h +++ b/fs/nfsd/vfs.h @@ -27,6 +27,8 @@ #define NFSD_MAY_BYPASS_GSS 0x400 #define NFSD_MAY_READ_IF_EXEC 0x800 +#define NFSD_MAY_64BIT_COOKIE 0x1000 /* 64 bit readdir cookies for >= NFSv3 */ + #define NFSD_MAY_CREATE (NFSD_MAY_EXEC|NFSD_MAY_WRITE) #define NFSD_MAY_REMOVE (NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC) -- cgit v1.1