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Avoid stat/fstat in statvfs/fstatvfs (BZ #15132)

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Delay the use of stat/fstat until stat data is required.  When the
kernel returns ST_VALID, stat data is not used by __internal_statvfs.
This commit is contained in:
Eric Wong
2014-05-29 09:41:29 +05:30
committed by Siddhesh Poyarekar
parent 0d3b7a190c
commit 26b0d2e1a1
7 changed files with 44 additions and 37 deletions
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10
sysdeps/unix/sysv/linux/statvfs64.c
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@ -26,7 +26,7 @@
extern void __internal_statvfs64 (const char *name, struct statvfs64 *buf,
struct statfs64 *fsbuf, struct stat64 *st);
struct statfs64 *fsbuf, int fd);
/* Return information about the filesystem on which FILE resides. */
@ -61,12 +61,8 @@ __statvfs64 (const char *file, struct statvfs64 *buf)
#endif
if (res == 0)
{
/* Convert the result. */
struct stat64 st;
__internal_statvfs64 (file, buf, &fsbuf,
stat64 (file, &st) == -1 ? NULL : &st);
}
/* Convert the result. */
__internal_statvfs64 (file, buf, &fsbuf, -1);
return res;
}