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commit 4e015d81aabb19d319fa73f2da11cd6b7ca5c2c3
parent 9bb1e53df5cd77986d126cb7800066b6190d684f
Author: Austin Clements <amdragon@mit.edu>
Date:   Fri,  2 Sep 2011 15:20:27 -0400

Shorten sys_unlink a little; create now fits in column

Diffstat:
Msysfile.c | 23++++++++++-------------
1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/sysfile.c b/sysfile.c @@ -188,26 +188,18 @@ sys_unlink(void) ilock(dp); // Cannot unlink "." or "..". - if(namecmp(name, ".") == 0 || namecmp(name, "..") == 0){ - iunlockput(dp); - commit_trans(); - return -1; - } + if(namecmp(name, ".") == 0 || namecmp(name, "..") == 0) + goto bad; - if((ip = dirlookup(dp, name, &off)) == 0){ - iunlockput(dp); - commit_trans(); - return -1; - } + if((ip = dirlookup(dp, name, &off)) == 0) + goto bad; ilock(ip); if(ip->nlink < 1) panic("unlink: nlink < 1"); if(ip->type == T_DIR && !isdirempty(ip)){ iunlockput(ip); - iunlockput(dp); - commit_trans(); - return -1; + goto bad; } memset(&de, 0, sizeof(de)); @@ -226,6 +218,11 @@ sys_unlink(void) commit_trans(); return 0; + +bad: + iunlockput(dp); + commit_trans(); + return -1; } static struct inode*