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| author | Olaf Hering <olaf@aepfle.de> | 2012-01-27 19:03:37 +0000 |
|---|---|---|
| committer | Olaf Hering <olaf@aepfle.de> | 2012-01-27 19:03:37 +0000 |
| commit | 7c4f9f61a2c98b3ae2cd5f898738368e1836fab2 (patch) | |
| tree | f7b1ef6ceadfe5aa5b6f551100ce08523cf804d2 /tools/xenpaging | |
| parent | 3fb8faf59e30206d45977e2908c2032d6ec3b3f0 (diff) | |
| download | xen-7c4f9f61a2c98b3ae2cd5f898738368e1836fab2.tar.gz xen-7c4f9f61a2c98b3ae2cd5f898738368e1836fab2.tar.bz2 xen-7c4f9f61a2c98b3ae2cd5f898738368e1836fab2.zip | |
xenpaging: make file_op largefile aware
lseek() takes an off_t, the used "int << shiftsize" does not automatically
convert the int into a larger type. This leads to write errors with pagefiles
larger than 2G. Fix this by shifting an off_t instead of an int.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Diffstat (limited to 'tools/xenpaging')
| -rw-r--r-- | tools/xenpaging/file_ops.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/xenpaging/file_ops.c b/tools/xenpaging/file_ops.c index 079d2551a8..9351e168bd 100644 --- a/tools/xenpaging/file_ops.c +++ b/tools/xenpaging/file_ops.c @@ -26,12 +26,12 @@ static int file_op(int fd, void *page, int i, ssize_t (*fn)(int, void *, size_t)) { - off_t seek_ret; + off_t offset = i; int total = 0; int bytes; - seek_ret = lseek(fd, i << PAGE_SHIFT, SEEK_SET); - if ( seek_ret == (off_t)-1 ) + offset = lseek(fd, offset << PAGE_SHIFT, SEEK_SET); + if ( offset == (off_t)-1 ) return -1; while ( total < PAGE_SIZE ) |