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isofs: Initialize filesystem timestamp ranges

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Fill in the appropriate limits to avoid inconsistencies
in the vfs cached inode times when timestamps are
outside the permitted range.

Reference: http://www.ecma-international.org/publications/standards/Ecma-119.htm

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Jeff Layton <jlayton@kernel.org>
This commit is contained in:
Deepa Dinamani 2019-06-23 16:17:10 -07:00
parent 83b8a3fbe3
commit 5ad32b3acd
1 changed files with 7 additions and 0 deletions
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7
fs/isofs/inode.c
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@ -30,6 +30,9 @@
#include "isofs.h"
#include "zisofs.h"
/* max tz offset is 13 hours */
#define MAX_TZ_OFFSET (52*15*60)
#define BEQUIET
static int isofs_hashi(const struct dentry *parent, struct qstr *qstr);
@ -801,6 +804,10 @@ root_found:
*/
s->s_maxbytes = 0x80000000000LL;
/* ECMA-119 timestamp from 1900/1/1 with tz offset */
s->s_time_min = mktime64(1900, 1, 1, 0, 0, 0) - MAX_TZ_OFFSET;
s->s_time_max = mktime64(U8_MAX+1900, 12, 31, 23, 59, 59) + MAX_TZ_OFFSET;
/* Set this for reference. Its not currently used except on write
which we don't have .. */