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osst: update ppos instead of using file->f_pos
osst_read()/osst_write() modify file->f_pos directly instead of the ppos given to them. The VFS later updates the file->f_pos and overwrites it with the value of ppos. Signed-off-by: Jan Blunck <jblunck@suse.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Willem Riede <osst@riede.org> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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commit
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1 changed files with 4 additions and 4 deletions
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@ -3587,7 +3587,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
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if (i == (-ENOSPC)) {
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transfer = STp->buffer->writing; /* FIXME -- check this logic */
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if (transfer <= do_count) {
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filp->f_pos += do_count - transfer;
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*ppos += do_count - transfer;
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count -= do_count - transfer;
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if (STps->drv_block >= 0) {
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STps->drv_block += (do_count - transfer) / STp->block_size;
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@ -3625,7 +3625,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
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goto out;
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}
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filp->f_pos += do_count;
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*ppos += do_count;
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b_point += do_count;
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count -= do_count;
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if (STps->drv_block >= 0) {
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@ -3647,7 +3647,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
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if (STps->drv_block >= 0) {
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STps->drv_block += blks;
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}
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filp->f_pos += count;
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*ppos += count;
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count = 0;
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}
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@ -3823,7 +3823,7 @@ static ssize_t osst_read(struct file * filp, char __user * buf, size_t count, lo
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}
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STp->logical_blk_num += transfer / STp->block_size;
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STps->drv_block += transfer / STp->block_size;
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filp->f_pos += transfer;
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*ppos += transfer;
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buf += transfer;
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total += transfer;
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}
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