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venti: handle FS block size > MaxIo

Browse source 
http://codereview.appspot.com/110071
This commit is contained in:
Venkatesh Srinivas 2009-08-23 17:35:22 -04:00
parent e066b12927
commit bf93068686
1 changed files with 5 additions and 2 deletions
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7
src/cmd/venti/srv/part.c
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@ -94,6 +94,8 @@ parsepart(char *name, char **file, char **subpart, u64int *lo, u64int *hi)
return 0; return 0;
} }
#undef min
#define min(a, b) ((a) < (b) ? (a) : (b))
Part* Part*
initpart(char *name, int mode) initpart(char *name, int mode)
{ {
@ -166,6 +168,9 @@ initpart(char *name, int mode)
part->fsblocksize = sfs.f_bsize; part->fsblocksize = sfs.f_bsize;
} }
#endif #endif
part->fsblocksize = min(part->fsblocksize, MaxIo);
if(subname && findsubpart(part, subname) < 0){ if(subname && findsubpart(part, subname) < 0){
werrstr("cannot find subpartition %s", subname); werrstr("cannot find subpartition %s", subname);
freepart(part); freepart(part);
@ -224,8 +229,6 @@ partblocksize(Part *part, u32int blocksize)
* body of the loop: up to MaxIo bytes at a time. If everything isn't aligned properly, * body of the loop: up to MaxIo bytes at a time. If everything isn't aligned properly,
* we work one block at a time. * we work one block at a time.
*/ */
#undef min
#define min(a, b) ((a) < (b) ? (a) : (b))
int int
prwb(char *name, int fd, int isread, u64int offset, void *vbuf, u32int count, u32int blocksize) prwb(char *name, int fd, int isread, u64int offset, void *vbuf, u32int count, u32int blocksize)
{ {