From: "Takashi Sato" <sho@tnes.nec.co.jp>
To: <torvalds@osdl.org>, <viro@zeniv.linux.org.uk>, <akpm@osdl.org>
Cc: <linux-kernel@vger.kernel.org>, <linux-fsdevel@vger.kernel.org>,
<trond.myklebust@fys.uio.no>
Subject: [PATCH 1/3] Fix problems on multi-TB filesystem and file
Date: Thu, 5 Jan 2006 19:03:47 +0900 [thread overview]
Message-ID: <000001c611df$5556aa00$4168010a@bsd.tnes.nec.co.jp> (raw)
Hi,
I sent following patches three weeks ago, but I got only a few
responses.
So, I am sending them again. Comments are always welcome.
We made patches to fix problems that occur when handling a large
filesystem and a large file. It was discussed on the mails titled
"stat64 for over 2TB file returned invalid st_blocks".
They consist of three patches.
[1/3] Fix the problem that st_blocks is invalid when calling stat64
for > 2TB-file.
[2/3] Add blkcnt_t as the type of inode.i_blocks.
This enables you to make the size of blkcnt_t either 4 bytes
or 8 bytes on 32 bits architecture with new configuration
parameter (CONFIG_LSF).
[3/3] Fix the problem that 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. This fix was
proposed by Trond Myklebust.
The content of the patch attached to this mail is below.
- inode.i_blocks
Change the type from unsigned long to sector_t.
- kstat.blocks
Change the type from unsigned long to unsigned long long.
- stat64.st_blocks
Change the type from unsigned long to unsigned long long on
architectures (i386, m68k, sh).
Any feedback and comments are welcome.
Signed-off-by: Takashi Sato <sho@tnes.nec.co.jp>
diff -uprN -X linux-2.6.15.org/Documentation/dontdiff linux-2.6.15.org/include/asm-i386/stat.h
linux-2.6.15-iblocks/include/asm-i386/stat.h
--- linux-2.6.15.org/include/asm-i386/stat.h 2006-01-03 12:21:10.000000000 +0900
+++ linux-2.6.15-iblocks/include/asm-i386/stat.h 2006-01-04 15:39:06.000000000 +0900
@@ -58,8 +58,7 @@ struct stat64 {
long long st_size;
unsigned long st_blksize;
- unsigned long st_blocks; /* Number 512-byte blocks allocated. */
- unsigned long __pad4; /* future possible st_blocks high bits */
+ unsigned long long st_blocks; /* Number 512-byte blocks allocated. */
unsigned long st_atime;
unsigned long st_atime_nsec;
diff -uprN -X linux-2.6.15.org/Documentation/dontdiff linux-2.6.15.org/include/asm-m68k/stat.h
linux-2.6.15-iblocks/include/asm-m68k/stat.h
--- linux-2.6.15.org/include/asm-m68k/stat.h 2006-01-03 12:21:10.000000000 +0900
+++ linux-2.6.15-iblocks/include/asm-m68k/stat.h 2006-01-04 15:39:06.000000000 +0900
@@ -60,8 +60,7 @@ struct stat64 {
long long st_size;
unsigned long st_blksize;
- unsigned long __pad4; /* future possible st_blocks high bits */
- unsigned long st_blocks; /* Number 512-byte blocks allocated. */
+ unsigned long long st_blocks; /* Number 512-byte blocks allocated. */
unsigned long st_atime;
unsigned long st_atime_nsec;
diff -uprN -X linux-2.6.15.org/Documentation/dontdiff linux-2.6.15.org/include/asm-sh/stat.h
linux-2.6.15-iblocks/include/asm-sh/stat.h
--- linux-2.6.15.org/include/asm-sh/stat.h 2006-01-03 12:21:10.000000000 +0900
+++ linux-2.6.15-iblocks/include/asm-sh/stat.h 2006-01-04 15:39:06.000000000 +0900
@@ -60,13 +60,7 @@ struct stat64 {
long long st_size;
unsigned long st_blksize;
-#if defined(__BIG_ENDIAN__)
- unsigned long __pad4; /* Future possible st_blocks hi bits */
- unsigned long st_blocks; /* Number 512-byte blocks allocated. */
-#else /* Must be little */
- unsigned long st_blocks; /* Number 512-byte blocks allocated. */
- unsigned long __pad4; /* Future possible st_blocks hi bits */
-#endif
+ unsigned long long st_blocks; /* Number 512-byte blocks allocated. */
unsigned long st_atime;
unsigned long st_atime_nsec;
diff -uprN -X linux-2.6.15.org/Documentation/dontdiff linux-2.6.15.org/include/linux/fs.h linux-2.6.15-iblocks/include/linux/fs.h
--- linux-2.6.15.org/include/linux/fs.h 2006-01-03 12:21:10.000000000 +0900
+++ linux-2.6.15-iblocks/include/linux/fs.h 2006-01-04 15:39:06.000000000 +0900
@@ -450,7 +450,7 @@ struct inode {
unsigned int i_blkbits;
unsigned long i_blksize;
unsigned long i_version;
- unsigned long i_blocks;
+ sector_t i_blocks;
unsigned short i_bytes;
spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */
struct semaphore i_sem;
diff -uprN -X linux-2.6.15.org/Documentation/dontdiff linux-2.6.15.org/include/linux/stat.h
linux-2.6.15-iblocks/include/linux/stat.h
--- linux-2.6.15.org/include/linux/stat.h 2006-01-03 12:21:10.000000000 +0900
+++ linux-2.6.15-iblocks/include/linux/stat.h 2006-01-04 15:39:06.000000000 +0900
@@ -69,7 +69,7 @@ struct kstat {
struct timespec mtime;
struct timespec ctime;
unsigned long blksize;
- unsigned long blocks;
+ unsigned long long blocks;
};
#endif
-- Takashi Sato
next reply other threads:[~2006-01-05 10:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-05 10:03 Takashi Sato [this message]
2006-01-13 2:31 ` [PATCH 1/3] Fix problems on multi-TB filesystem and file Andrew Morton
2006-01-13 13:48 ` Takashi Sato
-- strict thread matches above, loose matches on Subject: below --
2005-12-16 13:10 Takashi Sato
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='000001c611df$5556aa00$4168010a@bsd.tnes.nec.co.jp' \
--to=sho@tnes.nec.co.jp \
--cc=akpm@osdl.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=torvalds@osdl.org \
--cc=trond.myklebust@fys.uio.no \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).