static int fat_sync_fs(struct super_block *sb, int wait)
{
- lock_super(sb);
- fat_clusters_flush(sb);
- sb->s_dirt = 0;
- unlock_super(sb);
+ int err = 0;
- return 0;
+ if (sb->s_dirt) {
+ lock_super(sb);
+ sb->s_dirt = 0;
+ err = fat_clusters_flush(sb);
+ unlock_super(sb);
+ }
+
+ return err;
}
static void fat_put_super(struct super_block *sb)
iput(sbi->fat_inode);
- if (sbi->nls_disk) {
- unload_nls(sbi->nls_disk);
- sbi->nls_disk = NULL;
- sbi->options.codepage = fat_default_codepage;
- }
- if (sbi->nls_io) {
- unload_nls(sbi->nls_io);
- sbi->nls_io = NULL;
- }
- if (sbi->options.iocharset != fat_default_iocharset) {
+ unload_nls(sbi->nls_disk);
+ unload_nls(sbi->nls_io);
+
+ if (sbi->options.iocharset != fat_default_iocharset)
kfree(sbi->options.iocharset);
- sbi->options.iocharset = fat_default_iocharset;
- }
sb->s_fs_info = NULL;
kfree(sbi);
buf->f_bavail = sbi->free_clusters;
buf->f_fsid.val[0] = (u32)id;
buf->f_fsid.val[1] = (u32)(id >> 32);
- buf->f_namelen = sbi->options.isvfat ? 260 : 12;
+ buf->f_namelen = sbi->options.isvfat ? FAT_LFN_LEN : 12;
return 0;
}
return i_pos;
}
-static int fat_write_inode(struct inode *inode, int wait)
+static int __fat_write_inode(struct inode *inode, int wait)
{
struct super_block *sb = inode->i_sb;
struct msdos_sb_info *sbi = MSDOS_SB(sb);
return err;
}
+static int fat_write_inode(struct inode *inode, struct writeback_control *wbc)
+{
+ return __fat_write_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
+}
+
int fat_sync_inode(struct inode *inode)
{
- return fat_write_inode(inode, 1);
+ return __fat_write_inode(inode, 1);
}
EXPORT_SYMBOL_GPL(fat_sync_inode);
seq_puts(m, ",shortname=mixed");
break;
case VFAT_SFN_DISPLAY_LOWER | VFAT_SFN_CREATE_WIN95:
- /* seq_puts(m, ",shortname=lower"); */
+ seq_puts(m, ",shortname=lower");
break;
default:
seq_puts(m, ",shortname=unknown");
seq_puts(m, ",errors=panic");
else
seq_puts(m, ",errors=remount-ro");
+ if (opts->discard)
+ seq_puts(m, ",discard");
return 0;
}
Opt_shortname_winnt, Opt_shortname_mixed, Opt_utf8_no, Opt_utf8_yes,
Opt_uni_xl_no, Opt_uni_xl_yes, Opt_nonumtail_no, Opt_nonumtail_yes,
Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_rodir, Opt_err_cont,
- Opt_err_panic, Opt_err_ro, Opt_err,
+ Opt_err_panic, Opt_err_ro, Opt_discard, Opt_err,
};
static const match_table_t fat_tokens = {
{Opt_err_cont, "errors=continue"},
{Opt_err_panic, "errors=panic"},
{Opt_err_ro, "errors=remount-ro"},
+ {Opt_discard, "discard"},
{Opt_obsolate, "conv=binary"},
{Opt_obsolate, "conv=text"},
{Opt_obsolate, "conv=auto"},
opts->codepage = fat_default_codepage;
opts->iocharset = fat_default_iocharset;
if (is_vfat) {
- opts->shortname = VFAT_SFN_DISPLAY_LOWER|VFAT_SFN_CREATE_WIN95;
+ opts->shortname = VFAT_SFN_DISPLAY_WINNT|VFAT_SFN_CREATE_WIN95;
opts->rodir = 0;
} else {
opts->shortname = 0;
case Opt_rodir:
opts->rodir = 1;
break;
+ case Opt_discard:
+ opts->discard = 1;
+ break;
/* obsolete mount options */
case Opt_obsolate: