Commit bfb39fba authored by NeilBrown's avatar NeilBrown Committed by Linus Torvalds

[PATCH] md: check return value of write_page, rather than ignore it

Signed-off-by: default avatarNeil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent a2cff26a
......@@ -350,8 +350,7 @@ int bitmap_update_sb(struct bitmap *bitmap)
if (!bitmap->mddev->degraded)
sb->events_cleared = cpu_to_le64(bitmap->mddev->events);
kunmap(bitmap->sb_page);
write_page(bitmap->sb_page, 0);
return 0;
return write_page(bitmap->sb_page, 0);
}
/* print out the bitmap file superblock */
......@@ -735,7 +734,8 @@ int bitmap_unplug(struct bitmap *bitmap)
spin_unlock_irqrestore(&bitmap->lock, flags);
if (attr & (BITMAP_PAGE_DIRTY | BITMAP_PAGE_NEEDWRITE))
write_page(page, 0);
if (write_page(page, 0))
return 1;
}
if (wait) { /* if any writes were performed, we need to wait on them */
spin_lock_irq(&bitmap->write_lock);
......@@ -950,7 +950,7 @@ int bitmap_daemon_work(struct bitmap *bitmap)
if (get_page_attr(bitmap, lastpage) & BITMAP_PAGE_NEEDWRITE) {
clear_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE);
spin_unlock_irqrestore(&bitmap->lock, flags);
write_page(lastpage, 0);
err = write_page(lastpage, 0);
} else {
set_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE);
spin_unlock_irqrestore(&bitmap->lock, flags);
......@@ -998,7 +998,7 @@ int bitmap_daemon_work(struct bitmap *bitmap)
if (get_page_attr(bitmap, lastpage) &BITMAP_PAGE_NEEDWRITE) {
clear_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE);
spin_unlock_irqrestore(&bitmap->lock, flags);
write_page(lastpage, 0);
err = write_page(lastpage, 0);
} else {
set_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE);
spin_unlock_irqrestore(&bitmap->lock, flags);
......@@ -1375,7 +1375,8 @@ int bitmap_setallbits(struct bitmap *bitmap)
spin_unlock_irqrestore(&bitmap->lock, flags);
memset(kmap(page), 0xff, PAGE_SIZE);
kunmap(page);
write_page(page, 0);
if (write_page(page, 0))
return 1;
}
return 0;
......
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