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xen
24610-xenpaging_make_file_op_largefile_aware.patch
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File 24610-xenpaging_make_file_op_largefile_aware.patch of Package xen
changeset: 24610:255ae011567d user: Olaf Hering <olaf@aepfle.de> date: Fri Jan 27 19:03:37 2012 +0000 files: tools/xenpaging/file_ops.c description: 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> --- tools/xenpaging/file_ops.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) Index: xen-4.1.2-testing/tools/xenpaging/file_ops.c =================================================================== --- xen-4.1.2-testing.orig/tools/xenpaging/file_ops.c +++ xen-4.1.2-testing/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 )
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