The patch titled
zisofs: fix readpage() outside i_size
has been removed from the -mm tree. Its filename was
zisofs-fix-readpage-outside-i_size.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
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Subject: zisofs: fix readpage() outside i_size
From: Dave Young <hidave.darkstar@xxxxxxxxx>
A read request outside i_size will be handled in do_generic_file_read(). So
we just return 0 to avoid getting -EIO as normal reading, let
do_generic_file_read do the rest.
At the same time we need unlock the page to avoid system stuck.
Fixes http://bugzilla.kernel.org/show_bug.cgi?id=10227
Signed-off-by: Dave Young <hidave.darkstar@xxxxxxxxx>
Acked-by: Jan Kara <jack@xxxxxxx>
Report-by: Christian Perle <chris@xxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/isofs/compress.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff -puN fs/isofs/compress.c~zisofs-fix-readpage-outside-i_size fs/isofs/compress.c
--- a/fs/isofs/compress.c~zisofs-fix-readpage-outside-i_size
+++ a/fs/isofs/compress.c
@@ -72,6 +72,17 @@ static int zisofs_readpage(struct file *
offset = index & ~zisofs_block_page_mask;
blockindex = offset >> zisofs_block_page_shift;
maxpage = (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+
+ /*
+ * If this page is wholly outside i_size we just return zero;
+ * do_generic_file_read() will handle this for us
+ */
+ if (page->index >= maxpage) {
+ SetPageUptodate(page);
+ unlock_page(page);
+ return 0;
+ }
+
maxpage = min(zisofs_block_pages, maxpage-offset);
for ( i = 0 ; i < maxpage ; i++, offset++ ) {
_
Patches currently in -mm which might be from hidave.darkstar@xxxxxxxxx are
origin.patch
add-time_is_after_jiffies-and-others-which-compare-with-jiffies.patch
isolate-ratelimit-from-printkc-for-other-use.patch
isolate-ratelimit-from-printkc-for-other-use-update.patch
add-warn_on_secs-macro.patch
add-warn_on_secs-macro-simplification.patch
add-warn_on_secs-macro-simplification-fix.patch
use-warn_on_secs-in-rcupreempth.patch
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