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authorHeinrich Schuchardt <xypron.glpk@gmx.de>2020-11-21 08:32:50 +0100
committerHeinrich Schuchardt <xypron.glpk@gmx.de>2020-12-10 09:14:59 +0100
commita343249bef2faaf256fee2bf921d95cf0f44f367 (patch)
treede4eca7525c12c0ac6a3cfb097a45663c98bd4f7 /fs
parent28cef9ca2e86d90b6f1266a7eefa8557ae0ba144 (diff)
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fs: fat: pass shortname to fill_dir_slot
Currently we pass the short name via the directory iterator. Pass it explicitly as a parameter. This removes the requirement to set the short name in the iterator before writing the long name. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'fs')
-rw-r--r--fs/fat/fat_write.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c
index 058b566..7e88867 100644
--- a/fs/fat/fat_write.c
+++ b/fs/fat/fat_write.c
@@ -278,12 +278,16 @@ name11_12:
static int new_dir_table(fat_itr *itr);
static int flush_dir(fat_itr *itr);
-/*
- * Fill dir_slot entries with appropriate name, id, and attr
- * 'itr' will point to a next entry
+/**
+ * fill_dir_slot() - fill directory entries for long name
+ *
+ * @itr: directory iterator
+ * @l_name: long name
+ * @shortname: short name
+ * Return: 0 for success, -errno otherwise
*/
static int
-fill_dir_slot(fat_itr *itr, const char *l_name)
+fill_dir_slot(fat_itr *itr, const char *l_name, const char *shortname)
{
__u8 temp_dir_slot_buffer[MAX_LFN_SLOT * sizeof(dir_slot)];
dir_slot *slotptr = (dir_slot *)temp_dir_slot_buffer;
@@ -291,7 +295,7 @@ fill_dir_slot(fat_itr *itr, const char *l_name)
int idx = 0, ret;
/* Get short file name checksum value */
- checksum = mkcksum(itr->dent->name, itr->dent->ext);
+ checksum = mkcksum(shortname, shortname + 8);
do {
memset(slotptr, 0x00, sizeof(dir_slot));
@@ -317,7 +321,7 @@ fill_dir_slot(fat_itr *itr, const char *l_name)
if (!fat_itr_next(itr) && !itr->dent)
if ((itr->is_root && itr->fsdata->fatsize != 32) ||
new_dir_table(itr))
- return -1;
+ return -EIO;
}
return 0;
@@ -1241,7 +1245,7 @@ int file_fat_write_at(const char *filename, loff_t pos, void *buffer,
goto exit;
if (ret > 1) {
/* Set long name entries */
- ret = fill_dir_slot(itr, filename);
+ ret = fill_dir_slot(itr, filename, itr->dent->name);
if (ret)
goto exit;
}
@@ -1503,7 +1507,7 @@ int fat_mkdir(const char *new_dirname)
goto exit;
if (ret > 1) {
/* Set long name entries */
- ret = fill_dir_slot(itr, dirname);
+ ret = fill_dir_slot(itr, dirname, itr->dent->name);
if (ret)
goto exit;
}