diff options
| author | Tom Rini <trini@ti.com> | 2014-11-24 11:50:46 -0500 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-12-01 15:21:57 -0500 |
| commit | 9e374e7b729dc9f68be89cd3e3b1d4d48c768ecf (patch) | |
| tree | 159d3795f8fd20087fa4123a26c3e2efdde02121 | |
| parent | e17e998d7fee2e7d381b7bff21aca3714387d5d7 (diff) | |
fs/ext4/ext4fs.c, fs/fs.c fs/fat/fat_write.c: Adjust 64bit math methods
The changes to introduce loff_t into filesize means that we need to do
64bit math on 32bit platforms. Make sure we use the right wrappers for
these operations.
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Suriyan Ramasami <suriyan.r@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@ti.com>
Tested-by: Pierre Aubert <p.aubert@staubli.com>
| -rw-r--r-- | fs/ext4/ext4fs.c | 11 | ||||
| -rw-r--r-- | fs/fat/fat_write.c | 10 | ||||
| -rw-r--r-- | fs/fs.c | 6 |
3 files changed, 16 insertions, 11 deletions
diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c index 943b5bcf35e..258b93791b6 100644 --- a/fs/ext4/ext4fs.c +++ b/fs/ext4/ext4fs.c @@ -25,6 +25,7 @@ #include <ext_common.h> #include <ext4fs.h> #include "ext4_common.h" +#include <div64.h> int ext4fs_symlinknest; struct ext_filesystem ext_fs; @@ -67,11 +68,11 @@ int ext4fs_read_file(struct ext2fs_node *node, loff_t pos, if (len > filesize) len = filesize; - blockcnt = ((len + pos) + blocksize - 1) / blocksize; + blockcnt = lldiv(((len + pos) + blocksize - 1), blocksize); - for (i = pos / blocksize; i < blockcnt; i++) { + for (i = lldiv(pos, blocksize); i < blockcnt; i++) { lbaint_t blknr; - int blockoff = pos % blocksize; + int blockoff = pos - (blocksize * i); int blockend = blocksize; int skipfirst = 0; blknr = read_allocated_block(&(node->inode), i); @@ -82,7 +83,7 @@ int ext4fs_read_file(struct ext2fs_node *node, loff_t pos, /* Last block. */ if (i == blockcnt - 1) { - blockend = (len + pos) % blocksize; + blockend = (len + pos) - (blocksize * i); /* The last portion is exactly blocksize. */ if (!blockend) @@ -90,7 +91,7 @@ int ext4fs_read_file(struct ext2fs_node *node, loff_t pos, } /* First block. */ - if (i == pos / blocksize) { + if (i == lldiv(pos, blocksize)) { skipfirst = blockoff; blockend -= skipfirst; } diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c index 88dd4959ccd..98b88add83c 100644 --- a/fs/fat/fat_write.c +++ b/fs/fat/fat_write.c @@ -13,6 +13,8 @@ #include <asm/byteorder.h> #include <part.h> #include <linux/ctype.h> +#include <div64.h> +#include <linux/math64.h> #include "fat.c" static void uppercase(char *str, int len) @@ -770,7 +772,7 @@ static void fill_dentry(fsdata *mydata, dir_entry *dentptr, */ static int check_overflow(fsdata *mydata, __u32 clustnum, loff_t size) { - __u32 startsect, sect_num; + __u32 startsect, sect_num, offset; if (clustnum > 0) { startsect = mydata->data_begin + @@ -779,13 +781,13 @@ static int check_overflow(fsdata *mydata, __u32 clustnum, loff_t size) startsect = mydata->rootdir_sect; } - sect_num = size / mydata->sect_size; - if (size % mydata->sect_size) + sect_num = div_u64_rem(size, mydata->sect_size, &offset); + + if (offset != 0) sect_num++; if (startsect + sect_num > cur_part_info.start + total_sector) return -1; - return 0; } @@ -23,6 +23,8 @@ #include <fs.h> #include <sandboxfs.h> #include <asm/io.h> +#include <div64.h> +#include <linux/math64.h> DECLARE_GLOBAL_DATA_PTR; @@ -399,7 +401,7 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], printf("%llu bytes read in %lu ms", len_read, time); if (time > 0) { puts(" ("); - print_size(len_read / time * 1000, "/s"); + print_size(div_u64(len_read, time) * 1000, "/s"); puts(")"); } puts("\n"); @@ -469,7 +471,7 @@ int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], printf("%llu bytes written in %lu ms", len, time); if (time > 0) { puts(" ("); - print_size(len / time * 1000, "/s"); + print_size(div_u64(len, time) * 1000, "/s"); puts(")"); } puts("\n"); |