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ext4: constify static data that is never modified

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Constify static data in ext4 that is never (intentionally) modified so
that it is placed in .rodata and benefits from memory protection.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Eric Biggers
2017-04-29 23:47:50 -04:00
committed by Theodore Ts'o
parent 1bc0af600b
commit d600618673
5 changed files with 11 additions and 10 deletions
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5
fs/ext4/super.c
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@@ -1208,7 +1208,7 @@ static const struct fscrypt_operations ext4_cryptops = {
#endif
#ifdef CONFIG_QUOTA
static char *quotatypes[] = INITQFNAMES;
static const char * const quotatypes[] = INITQFNAMES;
#define QTYPE2NAME(t) (quotatypes[t])
static int ext4_write_dquot(struct dquot *dquot);
@@ -1422,7 +1422,8 @@ static ext4_fsblk_t get_sb_block(void **data)
}
#define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3))
static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
static const char deprecated_msg[] =
"Mount option \"%s\" will be removed by %s\n"
"Contact linux-ext4@vger.kernel.org if you think we should keep it.\n";
#ifdef CONFIG_QUOTA