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author | Olof Johansson <olof@lixom.net> | 2013-01-14 22:20:02 +0400 |
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committer | Olof Johansson <olof@lixom.net> | 2013-01-14 22:20:02 +0400 |
commit | 8d84981e395850aab31c3f2ca7e2738e03f671d7 (patch) | |
tree | 933425fddb23d28be802277471df3fe3f6c2711d /fs/f2fs/hash.c | |
parent | 00c82d64405631967dca3890a9ce80ab35d04cc7 (diff) | |
parent | 77cc982f6a3b33a5aa058ad3b20cda8866db2948 (diff) | |
download | linux-8d84981e395850aab31c3f2ca7e2738e03f671d7.tar.xz |
Merge branch 'clocksource/cleanup' into next/cleanup
Clockevent cleanup series from Shawn Guo.
Resolved move/change conflict in mach-pxa/time.c due to the sys_timer
cleanup.
* clocksource/cleanup:
clocksource: use clockevents_config_and_register() where possible
ARM: use clockevents_config_and_register() where possible
clockevents: export clockevents_config_and_register for module use
+ sync to Linux 3.8-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/mach-pxa/time.c
Diffstat (limited to 'fs/f2fs/hash.c')
-rw-r--r-- | fs/f2fs/hash.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/fs/f2fs/hash.c b/fs/f2fs/hash.c index a60f04200f8b..6eb8d269b53b 100644 --- a/fs/f2fs/hash.c +++ b/fs/f2fs/hash.c @@ -42,7 +42,7 @@ static void TEA_transform(unsigned int buf[4], unsigned int const in[]) buf[1] += b1; } -static void str2hashbuf(const char *msg, int len, unsigned int *buf, int num) +static void str2hashbuf(const char *msg, size_t len, unsigned int *buf, int num) { unsigned pad, val; int i; @@ -69,13 +69,17 @@ static void str2hashbuf(const char *msg, int len, unsigned int *buf, int num) *buf++ = pad; } -f2fs_hash_t f2fs_dentry_hash(const char *name, int len) +f2fs_hash_t f2fs_dentry_hash(const char *name, size_t len) { - __u32 hash, minor_hash; + __u32 hash; f2fs_hash_t f2fs_hash; const char *p; __u32 in[8], buf[4]; + if ((len <= 2) && (name[0] == '.') && + (name[1] == '.' || name[1] == '\0')) + return 0; + /* Initialize the default seed for the hash checksum functions */ buf[0] = 0x67452301; buf[1] = 0xefcdab89; @@ -83,15 +87,15 @@ f2fs_hash_t f2fs_dentry_hash(const char *name, int len) buf[3] = 0x10325476; p = name; - while (len > 0) { + while (1) { str2hashbuf(p, len, in, 4); TEA_transform(buf, in); - len -= 16; p += 16; + if (len <= 16) + break; + len -= 16; } hash = buf[0]; - minor_hash = buf[1]; - f2fs_hash = cpu_to_le32(hash & ~F2FS_HASH_COL_BIT); return f2fs_hash; } |