{
int code;
cred_t *credp = crref();
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+ char *address;
+ loff_t offset = pp->index << PAGE_CACHE_SHIFT;
+#else
ulong address = afs_linux_page_address(pp);
+ loff_t offset = pageoff(pp);
+#endif
uio_t tuio;
struct iovec iovec;
struct inode *ip = FILE_INODE(fp);
ICL_TYPE_POINTER, pp,
ICL_TYPE_INT32, cnt,
ICL_TYPE_INT32, 99999); /* not a possible code value */
- atomic_add(1, &pp->count);
-#if defined(AFS_LINUX24_ENV)
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+ address = kmap(pp);
ClearPageError(pp);
+
+ lock_kernel();
#else
+ atomic_add(1, &pp->count);
set_bit(PG_locked, &pp->flags); /* other bits? See mm.h */
clear_bit(PG_error, &pp->flags);
#endif
-#if defined(AFS_LINUX24_ENV)
- setup_uio(&tuio, &iovec, (char*)address, pp->index << PAGE_CACHE_SHIFT,
- PAGESIZE, UIO_READ, AFS_UIOSYS);
-#else
- setup_uio(&tuio, &iovec, (char*)address, pageoff(pp), PAGESIZE,
+ setup_uio(&tuio, &iovec, (char*)address, offset, PAGESIZE,
UIO_READ, AFS_UIOSYS);
-#endif
-#if defined(AFS_LINUX24_ENV)
- lock_kernel();
-#endif
code = afs_rdwr((struct vcache*)ip, &tuio, UIO_READ, 0, credp);
-#if defined(AFS_LINUX24_ENV)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
unlock_kernel();
#endif
if (tuio.uio_resid) /* zero remainder of page */
memset((void*)(address+(PAGESIZE-tuio.uio_resid)), 0,
tuio.uio_resid);
-#if defined(AFS_LINUX24_ENV)
-#ifndef __powerpc__
- flush_dcache_page(pp);
-#endif
- SetPageUptodate(pp);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+ flush_dcache_page(pp);
+ SetPageUptodate(pp);
#else
set_bit(PG_uptodate, &pp->flags);
#endif
}
-#if defined(AFS_LINUX24_ENV)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+ kunmap(pp);
UnlockPage(pp);
#else
clear_bit(PG_locked, &pp->flags);
wake_up(&pp->wait);
-#endif
free_page(address);
+#endif
crfree(credp);
afs_Trace4(afs_iclSetp, CM_TRACE_READPAGE,
AFS_GUNLOCK();
SetPageUptodate(pp);
UnlockPage(pp);
- /* kunmap(pp); */
if (status == offset)
return 0;
else
unsigned int count)
{
struct vcache *vcp = (struct vcache *) ip;
- u8 *page_addr = (u8*) afs_linux_page_address(pp);
+ char *buffer;
+ loff_t base;
int code = 0;
cred_t *credp;
uio_t tuio;
struct iovec iovec;
int f_flags = 0;
+ buffer = kmap(pp) + offset;
+ base = (pp->index << PAGE_CACHE_SHIFT) + offset;
+
credp = crref();
afs_Trace4(afs_iclSetp, CM_TRACE_UPDATEPAGE, ICL_TYPE_POINTER, vcp,
ICL_TYPE_POINTER, pp,
ICL_TYPE_INT32, atomic_read(&pp->count),
ICL_TYPE_INT32, 99999);
- setup_uio(&tuio, &iovec, page_addr + offset,
- (pp->index << PAGE_CACHE_SHIFT) + offset, count,
- UIO_WRITE, AFS_UIOSYS);
+ setup_uio(&tuio, &iovec, buffer, base, count, UIO_WRITE, AFS_UIOSYS);
code = afs_write(vcp, &tuio, f_flags, credp, 0);
ICL_TYPE_INT32, code);
crfree(credp);
+ kunmap(pp);
return code;
}
ICL_TYPE_POINTER, pp,
ICL_TYPE_INT32, atomic_read(&pp->count),
ICL_TYPE_INT32, 99999);
- setup_uio(&tuio, &iovec, page_addr + offset, pageoff(pp) + offset, count,
+ setup_uio(&tuio, &iovec, page_addr + offset, pp->offset + offset, count,
UIO_WRITE, AFS_UIOSYS);
code = afs_write(vcp, &tuio, fp->f_flags, credp, 0);
#if defined(AFS_LINUX24_ENV)
static int afs_linux_commit_write(struct file *file, struct page *page, unsigned offset, unsigned to)
{
- long status;
+ int code;
AFS_GLOCK();
lock_kernel();
- status = afs_linux_updatepage(file, page, offset, to-offset);
+ code = afs_linux_updatepage(file, page, offset, to-offset);
unlock_kernel();
AFS_GUNLOCK();
kunmap(page);
- return status;
+ return code;
}
static int afs_linux_prepare_write(struct file *file, struct page *page,
AFS_GLOCK();
lock_kernel();
code = afs_linux_ireadlink(ip, p, PAGE_SIZE, AFS_UIOSYS);
- unlock_kernel();
- AFS_GUNLOCK();
if (code<0)
goto fail;
p[code] = '\0'; /* null terminate? */
+ unlock_kernel();
+ AFS_GUNLOCK();
+
SetPageUptodate(page);
kunmap(page);
UnlockPage(page);
return 0;
fail:
+ unlock_kernel();
+ AFS_GUNLOCK();
+
SetPageError(page);
kunmap(page);
UnlockPage(page);