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authorSuriyan Ramasami <suriyan.r@gmail.com>2014-11-17 14:39:38 -0800
committerTom Rini <trini@ti.com>2014-11-23 06:49:04 -0500
commitd455d8789d5b35a39a0a179b3af4b423db13bfdd (patch)
tree751a2fa1db26cd7b6666bdf96cafc17db310e2b7 /fs/ext4
parent96b1046d1c68352677aa888cc110951a68daf155 (diff)
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fs: API changes enabling extra parameter to return size of type loff_t
The sandbox/ext4/fat/generic fs commands do not gracefully deal with files greater than 2GB. Negative values are returned in such cases. To handle this, the fs functions have been modified to take an additional parameter of type "* loff_t" which is then populated. The return value of the fs functions are used only for error conditions. Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> [trini: Update board/gdsys/p1022/controlcenterd-id.c, drivers/fpga/zynqpl.c for changes] Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/ext4fs.c22
1 files changed, 5 insertions, 17 deletions
diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c
index d82266f..943b5bc 100644
--- a/fs/ext4/ext4fs.c
+++ b/fs/ext4/ext4fs.c
@@ -184,16 +184,9 @@ int ext4fs_exists(const char *filename)
return ret == 0;
}
-int ext4fs_size(const char *filename)
+int ext4fs_size(const char *filename, loff_t *size)
{
- loff_t size;
- int ret;
-
- ret = ext4fs_open(filename, &size);
- if (ret)
- return ret;
- else
- return size;
+ return ext4fs_open(filename, size);
}
int ext4fs_read(char *buf, loff_t len, loff_t *actread)
@@ -217,10 +210,10 @@ int ext4fs_probe(block_dev_desc_t *fs_dev_desc,
return 0;
}
-int ext4_read_file(const char *filename, void *buf, int offset, int len)
+int ext4_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
+ loff_t *len_read)
{
loff_t file_len;
- loff_t len_read;
int ret;
if (offset != 0) {
@@ -237,12 +230,7 @@ int ext4_read_file(const char *filename, void *buf, int offset, int len)
if (len == 0)
len = file_len;
- ret = ext4fs_read(buf, len, &len_read);
-
- if (ret)
- return ret;
- else
- return len_read;
+ return ext4fs_read(buf, len, len_read);
}
int ext4fs_uuid(char *uuid_str)