lkml.org 
[lkml]   [2002]   [Mar]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
SubjectQuota patches for 2.5 - 6
Date
Here is the sixth of 13 patches.

As a continuation of patch 5 this changes all of the tracking to bytes. and
adds those supporting functions.




diff -urN -X txt/diff-exclude linux-2.5-linus/fs/dquot.c linux-2.5/fs/dquot.c
--- linux-2.5-linus/fs/dquot.c Sat Mar 2 19:34:16 2002
+++ linux-2.5/fs/dquot.c Sat Mar 2 19:33:06 2002
@@ -972,7 +972,7 @@
continue;
dquot_incr_space(dquot[cnt], number);
}
- inode->i_blocks += number >> 9;
+ inode_add_bytes(inode, number);
/* NOBLOCK End */
ret = QUOTA_OK;
warn_put_all:
@@ -1040,7 +1040,7 @@
dquot_decr_space(dquot, number);
dqputduplicate(dquot);
}
- inode->i_blocks -= number >> 9;
+ inode_sub_bytes(inode, number);
unlock_kernel();
/* NOBLOCK End */
}
@@ -1103,7 +1103,7 @@
}
}
/* NOBLOCK START: From now on we shouldn't block */
- space = ((qsize_t)inode->i_blocks) << 9;
+ space = inode_get_bytes(inode);
/* Build the transfer_from list and check the limits */
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
/* The second test can fail when quotaoff is in progress... */
diff -urN -X txt/diff-exclude linux-2.5-linus/fs/inode.c linux-2.5/fs/inode.c
--- linux-2.5-linus/fs/inode.c Sat Mar 2 16:40:20 2002
+++ linux-2.5/fs/inode.c Sat Mar 2 19:33:52 2002
@@ -100,6 +100,7 @@
atomic_set(&inode->i_writecount, 0);
inode->i_size = 0;
inode->i_blocks = 0;
+ inode->i_bytes = 0;
inode->i_generation = 0;
memset(&inode->i_dquot, 0, sizeof(inode->i_dquot));
inode->i_pipe = NULL;
diff -urN -X txt/diff-exclude linux-2.5-linus/include/linux/fs.h
linux-2.5/include/linux/fs.h
--- linux-2.5-linus/include/linux/fs.h Sat Mar 2 19:34:16 2002
+++ linux-2.5/include/linux/fs.h Sat Mar 2 19:32:22 2002
@@ -426,6 +426,7 @@
unsigned long i_blksize;
unsigned long i_blocks;
unsigned long i_version;
+ unsigned short i_bytes;
struct semaphore i_sem;
struct inode_operations *i_op;
struct file_operations *i_fop; /* former ->i_op->default_file_ops */
@@ -485,6 +486,39 @@
uid_t uid, euid; /* uid/euid of process setting the owner */
int signum; /* posix.1b rt signal to be delivered on IO */
};
+
+static inline void inode_add_bytes(struct inode *inode, loff_t bytes)
+{
+ inode->i_blocks += bytes >> 9;
+ bytes &= 511;
+ inode->i_bytes += bytes;
+ if (inode->i_bytes >= 512) {
+ inode->i_blocks++;
+ inode->i_bytes -= 512;
+ }
+}
+
+static inline void inode_sub_bytes(struct inode *inode, loff_t bytes)
+{
+ inode->i_blocks -= bytes >> 9;
+ bytes &= 511;
+ if (inode->i_bytes < bytes) {
+ inode->i_blocks--;
+ inode->i_bytes += 512;
+ }
+ inode->i_bytes -= bytes;
+}
+
+static inline loff_t inode_get_bytes(struct inode *inode)
+{
+ return (((loff_t)inode->i_blocks) << 9) + inode->i_bytes;
+}
+
+static inline void inode_set_bytes(struct inode *inode, loff_t bytes)
+{
+ inode->i_blocks = bytes >> 9;
+ inode->i_bytes = bytes & 511;
+}

struct file {
struct list_head f_list;
diff -urN -X txt/diff-exclude linux-2.5-linus/include/linux/quotaops.h
linux-2.5/include/linux/quotaops.h
--- linux-2.5-linus/include/linux/quotaops.h Sat Mar 2 19:34:18 2002
+++ linux-2.5/include/linux/quotaops.h Sat Mar 2 19:32:22 2002
@@ -70,7 +70,7 @@
}
}
else
- inode->i_blocks += nr >> 9;
+ inode_add_bytes(inode, nr);
unlock_kernel();
return 0;
}
@@ -94,7 +94,7 @@
}
}
else
- inode->i_blocks += nr >> 9;
+ inode_add_bytes(inode, nr);
unlock_kernel();
return 0;
}
@@ -127,7 +127,7 @@
if (sb_any_quota_enabled(inode->i_sb))
inode->i_sb->dq_op->free_space(inode, nr);
else
- inode->i_blocks -= nr >> 9;
+ inode_sub_bytes(inode, nr);
unlock_kernel();
}

@@ -177,7 +177,7 @@
extern __inline__ int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode,
qsize_t nr)
{
lock_kernel();
- inode->i_blocks += nr >> 9;
+ inode_add_bytes(inode, nr);
unlock_kernel();
return 0;
}
@@ -192,7 +192,7 @@
extern __inline__ int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t
nr)
{
lock_kernel();
- inode->i_blocks += nr >> 9;
+ inode_add_bytes(inode, nr);
unlock_kernel();
return 0;
}
@@ -207,7 +207,7 @@
extern __inline__ void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t
nr)
{
lock_kernel();
- inode->i_blocks -= nr >> 9;
+ inode_sub_bytes(inode, nr);
unlock_kernel();
}

@@ -222,8 +222,8 @@
#define DQUOT_PREALLOC_BLOCK_NODIRTY(inode, nr)
DQUOT_PREALLOC_SPACE_NODIRTY(inode, ((qsize_t)(nr)) <<
(inode)->i_sb->s_blocksize_bits)
#define DQUOT_PREALLOC_BLOCK(inode, nr) DQUOT_PREALLOC_SPACE(inode,
((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
#define DQUOT_ALLOC_BLOCK_NODIRTY(inode, nr)
DQUOT_ALLOC_SPACE_NODIRTY(inode, ((qsize_t)(nr)) <<
(inode)->i_sb->s_blocksize_bits)
-#define DQUOT_ALLOC_BLOCK(inode, nr) DQUOT_ALLOC_SPACE(inode,
fs_to_dq_blocks(nr, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
+#define DQUOT_ALLOC_BLOCK(inode, nr) DQUOT_ALLOC_SPACE(inode,
((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
#define DQUOT_FREE_BLOCK_NODIRTY(inode, nr) DQUOT_FREE_SPACE_NODIRTY(inode,
((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
-#define DQUOT_FREE_BLOCK(inode, nr) DQUOT_FREE_SPACE(inode,
fs_to_dq_blocks(nr, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
+#define DQUOT_FREE_BLOCK(inode, nr) DQUOT_FREE_SPACE(inode, ((qsize_t)(nr))
<< (inode)->i_sb->s_blocksize_bits)

#endif /* _LINUX_QUOTAOPS_ */
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2005-03-22 13:24    [W:0.029 / U:6.364 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site