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basic: New function fstype_is_blockdev_backed for fstypes that need a blockdev

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The function returns true if the specified filesystem requires a block device.
This commit is contained in:
YmrDtnJu 2020-06-06 12:42:01 +02:00
parent 639375e0b6
commit ac2474e4ff
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2 changed files with 11 additions and 0 deletions
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10
src/basic/mountpoint-util.c
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@ -338,6 +338,16 @@ bool fstype_is_api_vfs(const char *fstype) {
"tracefs");
}
bool fstype_is_blockdev_backed(const char *fstype) {
const char *x;
x = startswith(fstype, "fuse.");
if (x)
fstype = x;
return !streq(fstype, "9p") && !fstype_is_network(fstype) && !fstype_is_api_vfs(fstype);
}
bool fstype_is_ro(const char *fstype) {
/* All Linux file systems that are necessarily read-only */
return STR_IN_SET(fstype,

1
src/basic/mountpoint-util.h
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@ -14,6 +14,7 @@ int path_is_mount_point(const char *path, const char *root, int flags);
bool fstype_is_network(const char *fstype);
bool fstype_is_api_vfs(const char *fstype);
bool fstype_is_blockdev_backed(const char *fstype);
bool fstype_is_ro(const char *fsype);
bool fstype_can_discard(const char *fstype);
bool fstype_can_uid_gid(const char *fstype);