diff options
Diffstat (limited to 'fs/fat/dir.c')
| -rw-r--r-- | fs/fat/dir.c | 47 |
1 files changed, 24 insertions, 23 deletions
diff --git a/fs/fat/dir.c b/fs/fat/dir.c index 3a7f603b6982..38ff75a0fe22 100644 --- a/fs/fat/dir.c +++ b/fs/fat/dir.c @@ -22,6 +22,19 @@ #include <asm/uaccess.h> #include "fat.h" +/* + * Maximum buffer size of short name. + * [(MSDOS_NAME + '.') * max one char + nul] + * For msdos style, ['.' (hidden) + MSDOS_NAME + '.' + nul] + */ +#define FAT_MAX_SHORT_SIZE ((MSDOS_NAME + 1) * NLS_MAX_CHARSET_SIZE + 1) +/* + * Maximum buffer size of unicode chars from slots. + * [(max longname slots * 13 (size in a slot) + nul) * sizeof(wchar_t)] + */ +#define FAT_MAX_UNI_CHARS ((MSDOS_SLOTS - 1) * 13 + 1) +#define FAT_MAX_UNI_SIZE (FAT_MAX_UNI_CHARS * sizeof(wchar_t)) + static inline loff_t fat_make_i_pos(struct super_block *sb, struct buffer_head *bh, struct msdos_dir_entry *de) @@ -171,7 +184,8 @@ static inline int fat_uni_to_x8(struct msdos_sb_info *sbi, const wchar_t *uni, unsigned char *buf, int size) { if (sbi->options.utf8) - return utf8_wcstombs(buf, uni, size); + return utf16s_to_utf8s(uni, FAT_MAX_UNI_CHARS, + UTF16_HOST_ENDIAN, buf, size); else return uni16_to_x8(buf, uni, size, sbi->options.unicode_xlate, sbi->nls_io); @@ -325,19 +339,6 @@ parse_long: } /* - * Maximum buffer size of short name. - * [(MSDOS_NAME + '.') * max one char + nul] - * For msdos style, ['.' (hidden) + MSDOS_NAME + '.' + nul] - */ -#define FAT_MAX_SHORT_SIZE ((MSDOS_NAME + 1) * NLS_MAX_CHARSET_SIZE + 1) -/* - * Maximum buffer size of unicode chars from slots. - * [(max longname slots * 13 (size in a slot) + nul) * sizeof(wchar_t)] - */ -#define FAT_MAX_UNI_CHARS ((MSDOS_SLOTS - 1) * 13 + 1) -#define FAT_MAX_UNI_SIZE (FAT_MAX_UNI_CHARS * sizeof(wchar_t)) - -/* * Return values: negative -> error, 0 -> not found, positive -> found, * value is the total amount of slots, including the shortname entry. */ @@ -840,7 +841,7 @@ const struct file_operations fat_dir_operations = { #ifdef CONFIG_COMPAT .compat_ioctl = fat_compat_dir_ioctl, #endif - .fsync = file_fsync, + .fsync = fat_file_fsync, }; static int fat_get_short_entry(struct inode *dir, loff_t *pos, @@ -967,7 +968,7 @@ static int __fat_remove_entries(struct inode *dir, loff_t pos, int nr_slots) de++; nr_slots--; } - mark_buffer_dirty(bh); + mark_buffer_dirty_inode(bh, dir); if (IS_DIRSYNC(dir)) err = sync_dirty_buffer(bh); brelse(bh); @@ -1001,7 +1002,7 @@ int fat_remove_entries(struct inode *dir, struct fat_slot_info *sinfo) de--; nr_slots--; } - mark_buffer_dirty(bh); + mark_buffer_dirty_inode(bh, dir); if (IS_DIRSYNC(dir)) err = sync_dirty_buffer(bh); brelse(bh); @@ -1051,7 +1052,7 @@ static int fat_zeroed_cluster(struct inode *dir, sector_t blknr, int nr_used, } memset(bhs[n]->b_data, 0, sb->s_blocksize); set_buffer_uptodate(bhs[n]); - mark_buffer_dirty(bhs[n]); + mark_buffer_dirty_inode(bhs[n], dir); n++; blknr++; @@ -1131,7 +1132,7 @@ int fat_alloc_new_dir(struct inode *dir, struct timespec *ts) de[0].size = de[1].size = 0; memset(de + 2, 0, sb->s_blocksize - 2 * sizeof(*de)); set_buffer_uptodate(bhs[0]); - mark_buffer_dirty(bhs[0]); + mark_buffer_dirty_inode(bhs[0], dir); err = fat_zeroed_cluster(dir, blknr, 1, bhs, MAX_BUF_PER_PAGE); if (err) @@ -1193,7 +1194,7 @@ static int fat_add_new_entries(struct inode *dir, void *slots, int nr_slots, slots += copy; size -= copy; set_buffer_uptodate(bhs[n]); - mark_buffer_dirty(bhs[n]); + mark_buffer_dirty_inode(bhs[n], dir); if (!size) break; n++; @@ -1293,7 +1294,7 @@ found: for (i = 0; i < long_bhs; i++) { int copy = min_t(int, sb->s_blocksize - offset, size); memcpy(bhs[i]->b_data + offset, slots, copy); - mark_buffer_dirty(bhs[i]); + mark_buffer_dirty_inode(bhs[i], dir); offset = 0; slots += copy; size -= copy; @@ -1304,7 +1305,7 @@ found: /* Fill the short name slot. */ int copy = min_t(int, sb->s_blocksize - offset, size); memcpy(bhs[i]->b_data + offset, slots, copy); - mark_buffer_dirty(bhs[i]); + mark_buffer_dirty_inode(bhs[i], dir); if (IS_DIRSYNC(dir)) err = sync_dirty_buffer(bhs[i]); } @@ -1334,7 +1335,7 @@ found: goto error_remove; } if (dir->i_size & (sbi->cluster_size - 1)) { - fat_fs_panic(sb, "Odd directory size"); + fat_fs_error(sb, "Odd directory size"); dir->i_size = (dir->i_size + sbi->cluster_size - 1) & ~((loff_t)sbi->cluster_size - 1); } |