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[PATCH] 2TB files: change type of kstatfs entries

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This fix was proposed by Trond Myklebust.  He says: The type "sector_t" is
heavily tied in to the block layer interface as an offset/handle to a block,
and is subject to a supposedly block-specific configuration option:
CONFIG_LBD.  Despite this, it is used in struct kstatfs to save a couple of
bytes on the stack whenever we call the filesystems' ->statfs().

So kstatfs's entries related to blocks are invalid on statfs64 for a network
filesystem which has more than 2^32-1 blocks when CONFIG_LBD is disabled.

- struct kstatfs
  Change the type of following entries from sector_t to u64.
  f_blocks
  f_bfree
  f_bavail
  f_files
  f_ffree

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Takashi Sato <sho@tnes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Takashi Sato 2006-03-26 01:37:54 -08:00 committed by Linus Torvalds
parent 5515eff811
commit e2d53f9525
1 changed files with 5 additions and 5 deletions
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10
include/linux/statfs.h
View file

@ -8,11 +8,11 @@
struct kstatfs {
long f_type;
long f_bsize;
sector_t f_blocks;
sector_t f_bfree;
sector_t f_bavail;
sector_t f_files;
sector_t f_ffree;
u64 f_blocks;
u64 f_bfree;
u64 f_bavail;
u64 f_files;
u64 f_ffree;
__kernel_fsid_t f_fsid;
long f_namelen;
long f_frsize;