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| author | Olof Johansson <olof@lixom.net> | 2013-01-16 19:58:08 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-01-16 19:58:58 -0800 |
| commit | 5046e385b4426e229a6beb4bce480762af91a6fc (patch) | |
| tree | 65b4bff2c913a18840b3c58892853d51b942ac43 /fs/f2fs/hash.c | |
| parent | a73b59c51ab288d81b515b504790267f594884b8 (diff) | |
| parent | b86dc0d8c12bbb9fed3f392c284bdc7114ce00c1 (diff) | |
| download | linux-5046e385b4426e229a6beb4bce480762af91a6fc.tar.gz linux-5046e385b4426e229a6beb4bce480762af91a6fc.tar.bz2 linux-5046e385b4426e229a6beb4bce480762af91a6fc.zip | |
Merge branch 'v3.8-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim:
That branch fixes build error for S3C24XX/S3C64xx. And corrects dw-mshc
properties on EXYNOS5 DT and fixes IRQ mapping on Cragganmore board.
* 'v3.8-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: S3C64XX: Fix up IRQ mapping for balblair on Cragganmore
ARM: dts: correct the dw-mshc timing properties as per binding
ARM: S3C64XX: Fix build error with CONFIG_S3C_DEV_FB disabled
+ Linux 3.8-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>
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; } |