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Sanitize ->fsync() for FAT

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* mark directory data blocks as assoc. metadata
* add new inode to deal with FAT, mark FAT blocks as assoc. metadata of that
* now ->fsync() is trivial both for files and directories

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2009-06-07 13:44:36 -04:00
parent 964f536966
commit b522412aea
7 changed files with 49 additions and 19 deletions
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16
fs/fat/dir.c
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@@ -840,7 +840,7 @@ 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 +967,7 @@ 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 +1001,7 @@ 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 +1051,7 @@ 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 +1131,7 @@ 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 +1193,7 @@ 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 +1293,7 @@ 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 +1304,7 @@ 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]);
}