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infra: skip any backup subdirectories

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Thomas Schoebel-Theuer 2020-07-29 12:04:08 +02:00 committed by Thomas Schoebel-Theuer
parent fb6ed4aebe
commit c1df8e7c84
1 changed files with 9 additions and 0 deletions
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9
kernel/sy_old/sy_generic.c
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@ -1433,6 +1433,9 @@ struct mars_dir_context {
#endif #endif
// end_remove_this // end_remove_this
/* Skip any names / directories used for backup purposes */
#define MARS_BACKUP_STR "backup"
/* Caution: this is called as a callback from iterate_dir() and friends. /* Caution: this is called as a callback from iterate_dir() and friends.
* Don't deadlock by producing any filesystem output within this! * Don't deadlock by producing any filesystem output within this!
*/ */
@ -1469,6 +1472,8 @@ int mars_filler(void *__buf, const char *name, int namlen, loff_t offset,
if (!name || !*name || name[0] == '.') { if (!name || !*name || name[0] == '.') {
return 0; return 0;
} }
if (strnstr(name, MARS_BACKUP_STR, namlen))
return 0;
class = cookie->checker(cookie->check_parent, class = cookie->checker(cookie->check_parent,
name, namlen, name, namlen,
@ -1694,6 +1699,9 @@ static int _mars_readdir(struct mars_cookie *cookie)
mm_segment_t oldfs; mm_segment_t oldfs;
int status = 0; int status = 0;
if (unlikely(strstr(cookie->path, MARS_BACKUP_STR)))
goto done;
oldfs = get_fs(); oldfs = get_fs();
set_fs(get_ds()); set_fs(get_ds());
f = filp_open(cookie->path, O_DIRECTORY | O_RDONLY, 0); f = filp_open(cookie->path, O_DIRECTORY | O_RDONLY, 0);
@ -1734,6 +1742,7 @@ static int _mars_readdir(struct mars_cookie *cookie)
_mars_order_all(cookie); _mars_order_all(cookie);
done:
return status; return status;
} }