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| author | Al Viro <viro@zeniv.linux.org.uk> | 2010-06-05 06:27:38 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-08-10 00:47:53 +0400 |
| commit | 5ccb4a78d8c0e27985afec32cc4894d48e7b876e (patch) | |
| tree | 9f02b4f89011b45a21768f9b52c9822ce7cc7497 | |
| parent | 01cd9fef6eb3caae06415861de5b53224b722549 (diff) | |
| download | linux-5ccb4a78d8c0e27985afec32cc4894d48e7b876e.tar.xz | |
switch minix to ->evict_inode(), fix write_inode/delete_inode race
We need to wait for completion of possible writeback in progress
before we clear on-disk inode during deletion.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/minix/bitmap.c | 6 | ||||
| -rw-r--r-- | fs/minix/inode.c | 15 |
2 files changed, 12 insertions, 9 deletions
diff --git a/fs/minix/bitmap.c b/fs/minix/bitmap.c index 482779fe4e7c..3f32bcb0d9bd 100644 --- a/fs/minix/bitmap.c +++ b/fs/minix/bitmap.c @@ -200,13 +200,13 @@ void minix_free_inode(struct inode * inode) ino = inode->i_ino; if (ino < 1 || ino > sbi->s_ninodes) { printk("minix_free_inode: inode 0 or nonexistent inode\n"); - goto out; + return; } bit = ino & ((1<<k) - 1); ino >>= k; if (ino >= sbi->s_imap_blocks) { printk("minix_free_inode: nonexistent imap in superblock\n"); - goto out; + return; } minix_clear_inode(inode); /* clear on-disk copy */ @@ -217,8 +217,6 @@ void minix_free_inode(struct inode * inode) printk("minix_free_inode: bit %lu already cleared\n", bit); spin_unlock(&bitmap_lock); mark_buffer_dirty(bh); - out: - clear_inode(inode); /* clear in-memory copy */ } struct inode *minix_new_inode(const struct inode *dir, int mode, int *error) diff --git a/fs/minix/inode.c b/fs/minix/inode.c index 125062f55ef2..e39d6bf2e8fb 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c @@ -24,12 +24,17 @@ static int minix_write_inode(struct inode *inode, static int minix_statfs(struct dentry *dentry, struct kstatfs *buf); static int minix_remount (struct super_block * sb, int * flags, char * data); -static void minix_delete_inode(struct inode *inode) +static void minix_evict_inode(struct inode *inode) { truncate_inode_pages(&inode->i_data, 0); - inode->i_size = 0; - minix_truncate(inode); - minix_free_inode(inode); + if (!inode->i_nlink) { + inode->i_size = 0; + minix_truncate(inode); + } + invalidate_inode_buffers(inode); + end_writeback(inode); + if (!inode->i_nlink) + minix_free_inode(inode); } static void minix_put_super(struct super_block *sb) @@ -96,7 +101,7 @@ static const struct super_operations minix_sops = { .alloc_inode = minix_alloc_inode, .destroy_inode = minix_destroy_inode, .write_inode = minix_write_inode, - .delete_inode = minix_delete_inode, + .evict_inode = minix_evict_inode, .put_super = minix_put_super, .statfs = minix_statfs, .remount_fs = minix_remount, |