Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/fs/qnx4/fsync.c b/fs/qnx4/fsync.c
new file mode 100644
index 0000000..df5bc75
--- /dev/null
+++ b/fs/qnx4/fsync.c
@@ -0,0 +1,170 @@
+/*
+ * QNX4 file system, Linux implementation.
+ *
+ * Version : 0.1
+ *
+ * Using parts of the xiafs filesystem.
+ *
+ * History :
+ *
+ * 24-03-1998 by Richard Frowijn : first release.
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/time.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/smp_lock.h>
+#include <linux/buffer_head.h>
+
+#include <linux/fs.h>
+#include <linux/qnx4_fs.h>
+
+#include <asm/system.h>
+
+/*
+ * The functions for qnx4 fs file synchronization.
+ */
+
+#ifdef CONFIG_QNX4FS_RW
+
+static int sync_block(struct inode *inode, unsigned short *block, int wait)
+{
+ struct buffer_head *bh;
+ unsigned short tmp;
+
+ if (!*block)
+ return 0;
+ tmp = *block;
+ bh = sb_find_get_block(inode->i_sb, *block);
+ if (!bh)
+ return 0;
+ if (*block != tmp) {
+ brelse(bh);
+ return 1;
+ }
+ if (wait && buffer_req(bh) && !buffer_uptodate(bh)) {
+ brelse(bh);
+ return -1;
+ }
+ if (wait || !buffer_uptodate(bh) || !buffer_dirty(bh)) {
+ brelse(bh);
+ return 0;
+ }
+ ll_rw_block(WRITE, 1, &bh);
+ atomic_dec(&bh->b_count);
+ return 0;
+}
+
+#ifdef WTF
+static int sync_iblock(struct inode *inode, unsigned short *iblock,
+ struct buffer_head **bh, int wait)
+{
+ int rc;
+ unsigned short tmp;
+
+ *bh = NULL;
+ tmp = *iblock;
+ if (!tmp)
+ return 0;
+ rc = sync_block(inode, iblock, wait);
+ if (rc)
+ return rc;
+ *bh = sb_bread(inode->i_sb, tmp);
+ if (tmp != *iblock) {
+ brelse(*bh);
+ *bh = NULL;
+ return 1;
+ }
+ if (!*bh)
+ return -1;
+ return 0;
+}
+#endif
+
+static int sync_direct(struct inode *inode, int wait)
+{
+ int i;
+ int rc, err = 0;
+
+ for (i = 0; i < 7; i++) {
+ rc = sync_block(inode,
+ (unsigned short *) qnx4_raw_inode(inode)->di_first_xtnt.xtnt_blk + i, wait);
+ if (rc > 0)
+ break;
+ if (rc)
+ err = rc;
+ }
+ return err;
+}
+
+#ifdef WTF
+static int sync_indirect(struct inode *inode, unsigned short *iblock, int wait)
+{
+ int i;
+ struct buffer_head *ind_bh;
+ int rc, err = 0;
+
+ rc = sync_iblock(inode, iblock, &ind_bh, wait);
+ if (rc || !ind_bh)
+ return rc;
+
+ for (i = 0; i < 512; i++) {
+ rc = sync_block(inode,
+ ((unsigned short *) ind_bh->b_data) + i,
+ wait);
+ if (rc > 0)
+ break;
+ if (rc)
+ err = rc;
+ }
+ brelse(ind_bh);
+ return err;
+}
+
+static int sync_dindirect(struct inode *inode, unsigned short *diblock,
+ int wait)
+{
+ int i;
+ struct buffer_head *dind_bh;
+ int rc, err = 0;
+
+ rc = sync_iblock(inode, diblock, &dind_bh, wait);
+ if (rc || !dind_bh)
+ return rc;
+
+ for (i = 0; i < 512; i++) {
+ rc = sync_indirect(inode,
+ ((unsigned short *) dind_bh->b_data) + i,
+ wait);
+ if (rc > 0)
+ break;
+ if (rc)
+ err = rc;
+ }
+ brelse(dind_bh);
+ return err;
+}
+#endif
+
+int qnx4_sync_file(struct file *file, struct dentry *dentry, int unused)
+{
+ struct inode *inode = dentry->d_inode;
+ int wait, err = 0;
+
+ (void) file;
+ if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+ S_ISLNK(inode->i_mode)))
+ return -EINVAL;
+
+ lock_kernel();
+ for (wait = 0; wait <= 1; wait++) {
+ err |= sync_direct(inode, wait);
+ }
+ err |= qnx4_sync_inode(inode);
+ unlock_kernel();
+ return (err < 0) ? -EIO : 0;
+}
+
+#endif