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authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>2006-02-24 13:03:53 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-24 14:31:36 -0800
commit31bc5a33346b6dd35be219d1416449e0064e9123 (patch)
treece4c3d105b5ec6cfa69b8300a885c9c26908eafe /arch
parentb1a3aa209161af3b7ca8ce8eae89b15faa96f612 (diff)
[PATCH] uml: correct error messages in COW driver
Improve some error messages in the COW driver, and say V3, not V2, when talking about V3 format. Also resync with our userspace code utility a bit more. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/um/drivers/cow_sys.h2
-rw-r--r--arch/um/drivers/cow_user.c21
2 files changed, 13 insertions, 10 deletions
diff --git a/arch/um/drivers/cow_sys.h b/arch/um/drivers/cow_sys.h
index c83fc5d6893..df25263d2ad 100644
--- a/arch/um/drivers/cow_sys.h
+++ b/arch/um/drivers/cow_sys.h
@@ -33,7 +33,7 @@ static inline int cow_file_size(char *file, unsigned long long *size_out)
return(os_file_size(file, size_out));
}
-static inline int cow_write_file(int fd, char *buf, int size)
+static inline int cow_write_file(int fd, void *buf, int size)
{
return(os_write_file(fd, buf, size));
}
diff --git a/arch/um/drivers/cow_user.c b/arch/um/drivers/cow_user.c
index fbe2217db5d..d1c86bc377b 100644
--- a/arch/um/drivers/cow_user.c
+++ b/arch/um/drivers/cow_user.c
@@ -176,7 +176,7 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
err = -ENOMEM;
header = cow_malloc(sizeof(*header));
if(header == NULL){
- cow_printf("Failed to allocate COW V3 header\n");
+ cow_printf("write_cow_header - failed to allocate COW V3 header\n");
goto out;
}
header->magic = htonl(COW_MAGIC);
@@ -196,15 +196,17 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
err = os_file_modtime(header->backing_file, &modtime);
if(err < 0){
- cow_printf("Backing file '%s' mtime request failed, "
- "err = %d\n", header->backing_file, -err);
+ cow_printf("write_cow_header - backing file '%s' mtime "
+ "request failed, err = %d\n", header->backing_file,
+ -err);
goto out_free;
}
err = cow_file_size(header->backing_file, size);
if(err < 0){
- cow_printf("Couldn't get size of backing file '%s', "
- "err = %d\n", header->backing_file, -err);
+ cow_printf("write_cow_header - couldn't get size of "
+ "backing file '%s', err = %d\n",
+ header->backing_file, -err);
goto out_free;
}
@@ -214,10 +216,11 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
header->alignment = htonl(alignment);
header->cow_format = COW_BITMAP;
- err = os_write_file(fd, header, sizeof(*header));
+ err = cow_write_file(fd, header, sizeof(*header));
if(err != sizeof(*header)){
- cow_printf("Write of header to new COW file '%s' failed, "
- "err = %d\n", cow_file, -err);
+ cow_printf("write_cow_header - write of header to "
+ "new COW file '%s' failed, err = %d\n", cow_file,
+ -err);
goto out_free;
}
err = 0;
@@ -299,7 +302,7 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
}
else if(version == 3){
if(n < sizeof(header->v3)){
- cow_printf("read_cow_header - failed to read V2 "
+ cow_printf("read_cow_header - failed to read V3 "
"header\n");
goto out;
}